| Patents for E04G 21 - Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work (22,137) |
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| 01/10/2013 | US20130008097 Tower lifting stand system |
| 01/10/2013 | DE102011078783A1 Verteilermast für Betonpumpen Placing boom concrete pump |
| 01/10/2013 | DE102011078780A1 Verteilermast für Betonpumpen Placing boom concrete pump |
| 01/09/2013 | CN202658942U Under-10KV overhead high voltage line safety guard |
| 01/09/2013 | CN202658911U Protective hood for protecting threshold |
| 01/09/2013 | CN202658910U Multi-purpose slag receiving hopper |
| 01/09/2013 | CN202658909U Steel column positioning rack based on reverse-building method |
| 01/09/2013 | CN202658908U Self-discharging type hopper |
| 01/09/2013 | CN202658907U Tool type support for mounting superimposed sheet |
| 01/09/2013 | CN202658906U Insertion type heel mounting device for steel structure |
| 01/09/2013 | CN202658905U Strand pulling machine for steel strand pulling |
| 01/09/2013 | CN202658904U Device for vibrating cast-in-place concrete |
| 01/09/2013 | CN202658903U Transverse folding arm frame system of arm frame type concrete stirring pump truck |
| 01/09/2013 | CN202658902U Hoisting and spreading dual-purpose type concrete spreader |
| 01/09/2013 | CN202658901U Novel pump truck arm rest support |
| 01/09/2013 | CN202658900U Large-volume concrete temperature control system |
| 01/09/2013 | CN202658899U Outer wall spray curing device |
| 01/09/2013 | CN202658898U Novel travelling frame system |
| 01/09/2013 | CN202658897U Deep small object gripping tool |
| 01/09/2013 | CN202658896U Simple direct connecting fastener |
| 01/09/2013 | CN202658884U Ultra-long waterproof post-cast strip device for bottom plate |
| 01/09/2013 | CN202658561U Magnetic iron attraction device |
| 01/09/2013 | CN202658523U Secure intelligent steel-strand secondary tensioning system |
| 01/09/2013 | CN202655401U Steel tube straightener |
| 01/09/2013 | CN102864942A Manufacturing method for security protective cover |
| 01/09/2013 | CN102864941A Openable jig frame for assembling triangular truss and construction method |
| 01/09/2013 | CN102864940A Mechanical reversible reaction frame device |
| 01/09/2013 | CN102864939A Method for mounting self-insulated enameling sheet curtain wall |
| 01/09/2013 | CN102864938A Unloading method of net frame lifting frames |
| 01/09/2013 | CN102864937A Construction method of rear added insert of prefabricated pillar |
| 01/09/2013 | CN102864936A Combination lifting construction method for large-scale high hollow building roof of steel structure |
| 01/09/2013 | CN102864935A Novel purline mounting method |
| 01/09/2013 | CN102864934A Construction method of back-bolt type dry hanging stone curtain wall |
| 01/09/2013 | CN102864933A Construction method of water-proof breathable films |
| 01/09/2013 | CN102864932A Construction method of hanging type transparent and implicit combined glass curtain wall |
| 01/09/2013 | CN102864931A In-built plug-in concrete vibrator of motor |
| 01/09/2013 | CN102864930A Intermittent on-off type mass concrete cooling water supply control system |
| 01/09/2013 | CN102864929A Awning for construction in scorching sun |
| 01/09/2013 | CN102864928A Construction method for spiral stairs with large-span space |
| 01/09/2013 | CN102864927A Large-section special-shaped combined steel and concrete column construction method |
| 01/09/2013 | CN102864926A Construction method of steel structure conversion layer furred ceiling |
| 01/09/2013 | CN102864875A A-shaped roof truss steel rod structure system and construction method thereof |
| 01/09/2013 | CN102864859A Curtain wall steel support structure, construction method thereof and lifting device for construction |
| 01/09/2013 | CN102864842A Core anchoring barrel type node system of reinforced concrete frame structure and application of core anchoring barrel type node system |
| 01/09/2013 | CN102864840A Pre-stressed steel frame for exerting pre-stress by support displacement method and fabrication method of pre-stressed steel frame |
| 01/09/2013 | CN102605952B Construction method for shielding cooling system and steel lining wall of high temperature gas cooled reactor |
| 01/09/2013 | CN102359279B Improved method for installing reinforcement cage in beam column joint zone of reinforced concrete frame structure |
| 01/09/2013 | CN102287058B Method for installing and leveling large-plane high-precision embedded part |
| 01/09/2013 | CN102277975B Clamping arm in transfer machine |
| 01/09/2013 | CN102251483B Construction method for hoisting concrete-filled steel tube lattice bridge pier through self-lifting attached crane |
| 01/09/2013 | CN102235088B Detachable die for manufacturing ventilation port of RC (Reinforced Concrete) floor slab and construction method of ventilation port |
| 01/09/2013 | CN102127968B Method for grouting floor slab bushing hole reservation preembedding die and grouting die |
| 01/09/2013 | CN101967885B Prestressed reinforcing steel tensioning equipment |
| 01/09/2013 | CN101769074B Automatic clogging method and automatic clogging device for oblique concrete column |
| 01/09/2013 | CN101696604B Construction method for chimney wall and special electric jacking flat bridge |
| 01/08/2013 | US8347587 Method of tiling a roof with interlocking tiles employing an adjustable rain lock |
| 01/08/2013 | DE202011052489U1 Lichtband für Dächer Light tape for roofs |
| 01/08/2013 | CA2745797A1 Multi-piece anchor system for use with masonry over stud back-up walls |
| 01/08/2013 | CA2605063C Construction safety system |
| 01/03/2013 | WO2013002160A1 Fall prevention device and tank for floating body structure |
| 01/03/2013 | WO2013000319A1 Engine speed control method, control system and jib-type engineering machine |
| 01/03/2013 | US20130004265 Adjustment Head for a Hoisting Device |
| 01/03/2013 | US20130001493 Safety Barrier |
| 01/02/2013 | EP2539522A1 Removable barrier for location on an upper portion of a wall |
| 01/02/2013 | CN202645034U Building construction guardrail made of bending-type fixing pieces |
| 01/02/2013 | CN202645033U Building operation guardrail adopting clamping ring type fixing pieces |
| 01/02/2013 | CN202645032U Assembly type floor protective barrier |
| 01/02/2013 | CN202645031U Building construction guardrail |
| 01/02/2013 | CN202645030U Building construction guardrail adopting steel bar ring fixing pieces |
| 01/02/2013 | CN202645029U Building cushion block |
| 01/02/2013 | CN202645028U Assembly type bolt group die |
| 01/02/2013 | CN202645027U Pipe type screw corrector |
| 01/02/2013 | CN202645026U Post foot correcting device for steel structure steel post |
| 01/02/2013 | CN202645025U Installation tool special for suspender |
| 01/02/2013 | CN202645024U Installing lifting device for steel structure purline |
| 01/02/2013 | CN202645023U Reinforcement cage for lifting steel tubes and wood braces |
| 01/02/2013 | CN202645022U Drawer type building receiving platform |
| 01/02/2013 | CN202645021U Portable embedded steel bar machine tool |
| 01/02/2013 | CN202645020U Adjustable column rebar positioning hoop |
| 01/02/2013 | CN202645019U Pre-stress force bamboo and wood beam |
| 01/02/2013 | CN202645018U Novel concrete pushing plate |
| 01/02/2013 | CN202645017U Vertical feeder for concretes |
| 01/02/2013 | CN202645016U Wind-water separation type guniting vehicle |
| 01/02/2013 | CN202645015U Engineering machinery, arm support, and arm support protective device |
| 01/02/2013 | CN202645014U Concrete pump truck |
| 01/02/2013 | CN202645013U Preload reinforced boom and outrigger and pump truck |
| 01/02/2013 | CN202645012U Conveyer pipe for boom of concrete pump truck |
| 01/02/2013 | CN202645011U Pumping device for super high-rise building steel tube concrete |
| 01/02/2013 | CN202645010U Concrete spraying unit |
| 01/02/2013 | CN202645009U Special elbow pipe for double-layer wear-resisting concrete pump truck |
| 01/02/2013 | CN202645008U Improved concrete hopper |
| 01/02/2013 | CN202645007U Concrete conveying device |
| 01/02/2013 | CN202645006U Concrete hopper with double inlets and double outlets |
| 01/02/2013 | CN202645005U Concrete conveying device |
| 01/02/2013 | CN202645004U Concrete conveyor |
| 01/02/2013 | CN202645003U Improved concrete conveying pump |
| 01/02/2013 | CN202645002U Improved concrete conveying device |
| 01/02/2013 | CN202645001U Concrete vertical conveying device |
| 01/02/2013 | CN202645000U Discarding and scattering prevention device for pumped concrete discharge pipe orifice |
| 01/02/2013 | CN202644348U Compaction and flattening tool for reinforced concrete terrace |