| 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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| 05/12/1999 | EP0914531A1 Device for assembling prefabricated concrete parts |
| 05/12/1999 | CN1043332C Method and apparatus for binding articles together |
| 05/06/1999 | WO1999022098A1 Cover construction |
| 05/06/1999 | EP0782649A4 Method of thawing frozen ground |
| 05/06/1999 | DE19747908A1 Nozzle for applying thin bed mortar on one side of blocks for wall production |
| 05/06/1999 | DE19746336A1 Concrete molding shell |
| 05/04/1999 | CA2010108C Flat steel concrete anchor for precast concrete pieces |
| 04/29/1999 | DE19746917A1 Pre-stressed bridge tendons for stress transmission |
| 04/29/1999 | DE19743717A1 Automatic wall-bricking device with brick pallet and gripper |
| 04/28/1999 | CN2316390Y Detachable safety railing |
| 04/28/1999 | CN2316389Y Detachable safety railing |
| 04/28/1999 | CN2316388Y Detachable safety railing |
| 04/28/1999 | CN2316387Y Detachable safety railing |
| 04/27/1999 | US5896944 Adjustable rail barricade for working on a roof |
| 04/27/1999 | US5896720 Support clip bar for a pitched roof |
| 04/27/1999 | US5896719 Roof safety anchor |
| 04/22/1999 | WO1999019583A1 Device for installing light-weight panel units |
| 04/22/1999 | WO1999019582A1 Barriers and barrier systems and components for barrier systems |
| 04/22/1999 | WO1999019568A1 Apparatus and method for preparing a site and finishing poured concrete |
| 04/22/1999 | WO1999019073A1 Nozzle to batch and regularize concrete delivery from the pipe of concrete distribution arms |
| 04/22/1999 | DE19745899A1 Structural component for force transmission between two adjacent concrete component parts |
| 04/21/1999 | EP0909860A1 Arrangement for spreading mortar on one side of bricks |
| 04/21/1999 | EP0909691A1 Transport trolley for a supended rail track |
| 04/21/1999 | CN1214386A Flame retardant for mesh sheets and flameproof mesh sheet comprising the same |
| 04/20/1999 | US5895690 Method and appratus for applying mortar to the underside of a building block |
| 04/20/1999 | US5895688 Adding silica precipitate and aluminum sulfate additives |
| 04/20/1999 | US5894676 Brick laying template |
| 04/15/1999 | WO1999018273A1 Sheet capable of controlling quantity of passing fluid |
| 04/15/1999 | DE19724294C1 Movable tent for providing protection to surfaces exposed to the weather |
| 04/14/1999 | EP0908583A1 Method of moving heavy materials |
| 04/14/1999 | EP0908582A1 Brake mechanism of wire reel for reinforcing bar binding machine |
| 04/14/1999 | EP0654571B1 Zone module construction method of steel structure construction |
| 04/14/1999 | CN2314029Y Safety vertical net |
| 04/14/1999 | CN2314010Y Concete vibrating cylinder with strengthened planetary rolling cone structure |
| 04/14/1999 | CN2314009Y Movable doser for concrete mixer |
| 04/07/1999 | EP0906483A1 System for covering |
| 04/07/1999 | EP0906231A1 Conveyor modular construction techniques |
| 04/07/1999 | EP0734475B1 Apparatus and method for placing and vibrating a concrete structure |
| 04/06/1999 | US5892295 Fuse apparatus for a vehicle |
| 04/06/1999 | US5890328 Roof eave ventilation safety device |
| 04/01/1999 | WO1999015286A1 Rebar clip gun |
| 03/31/1999 | CN2312290Y Machine for forming reinforcing bar frame of concrete building elements |
| 03/30/1999 | US5888301 Tile-holding fixture for adhesive application |
| 03/30/1999 | US5887394 Protective assembly for reinforcement bars |
| 03/30/1999 | CA2141553C Dual sensitivity stud sensor |
| 03/30/1999 | CA2137051C Process for the grouting of unbonded post-tensioned cables |
| 03/24/1999 | CN2311562Y Machine for levelling ground |
| 03/23/1999 | US5884725 Scaffolding assembly |
| 03/23/1999 | US5884411 Truss alignment apparatus |
| 03/18/1999 | WO1999012708A2 Apparatus and method for applying deformable metal fastener clips to concrete reinforcement steel |
| 03/17/1999 | EP0901550A1 Vibration generator with portable needle. |
| 03/17/1999 | CN2310826Y Enforced feed mechanism for concrete wet spray machine |
| 03/17/1999 | CN2310825Y Brick laying uprighting device |
| 03/16/1999 | US5881530 Method and apparatus for constructing prestressed structures utilizing a membrane and floating dome assembly |
| 03/16/1999 | US5881504 Temporary frame system for construction |
| 03/16/1999 | US5881460 Method for fastening concrete reinforcement steel using deformable metal fastener clips |
| 03/16/1999 | US5881452 Apparatus for applying deformable metal fastener clips to concrete reinforcement steel and the like |
| 03/11/1999 | WO1999011888A1 Process for jointing coverings provided with joints |
| 03/11/1999 | WO1999011887A1 Powder transfer apparatus and powder spraying method |
| 03/11/1999 | DE19745587C1 Transport vehicle for suspended railway |
| 03/10/1999 | EP0900673A2 Drip collector for painting activities |
| 03/10/1999 | CN2310125Y Conic end support friction pile construction device |
| 03/10/1999 | CN1210505A Flowability additive |
| 03/09/1999 | US5878534 Roof ridge safety device |
| 03/04/1999 | DE19737644A1 Verfahren zur Verfugung von Fugen aufweisenden Belägen Method for grouting joints having coverings |
| 03/04/1999 | DE19737006A1 Holder for bricklayers lines |
| 03/03/1999 | CN2309394Y Painting machine |
| 03/03/1999 | CN2309393Y Multi-functional bricklayer's knife |
| 03/03/1999 | CN2309392Y Concrete watering jet eductor with two discharge holes |
| 03/02/1999 | US5875867 Fall restraint system and method useful for roof inspection |
| 02/25/1999 | WO1999008949A1 Bulk conveying system and method of controlling a bulk conveying system |
| 02/25/1999 | CA2301041A1 Bulk conveying system and method of controlling a bulk conveying system |
| 02/24/1999 | EP0897442A1 Device for pouring out concrete |
| 02/24/1999 | CN2308674Y Multiple compositions slip casting machine having automatic batching and automatic stirring functions |
| 02/24/1999 | CN2308673Y Combined concrete agitation station |
| 02/23/1999 | US5874816 Method of preventing wire from becoming entangled in reinforcing bar fastening machine |
| 02/23/1999 | US5873211 In position on a brick wall |
| 02/18/1999 | WO1999007941A1 Vibrating device and method for its construction |
| 02/18/1999 | WO1999007940A1 Vibrating device for processing a floor layer |
| 02/17/1999 | CN2307873Y Masonry shovel for bricklayer |
| 02/17/1999 | CN2307872Y 平板振动器 Tablet vibrator |
| 02/17/1999 | CN2307871Y Mechanism for adjusting elastic wheel claming tamping hammer |
| 02/17/1999 | CN2307870Y Shearing vibrator |
| 02/17/1999 | CN2307816Y Concrete vibrator and its power supply unit |
| 02/17/1999 | CN1208112A Building wall reinforcing-bar structure making machines |
| 02/16/1999 | US5871206 Apparatus for assisting the lifting of rigid sheet materials |
| 02/16/1999 | US5871036 Twisting and tightening mechanism in reinforcement binding machine |
| 02/16/1999 | US5870874 Means for spacing and fastening structural members in juxtaposition |
| 02/12/1999 | CA2605063A1 Construction safety system |
| 02/11/1999 | WO1999006650A1 Concrete supply arm with articulated sections |
| 02/11/1999 | DE19728980A1 Assembly aid for support elements in roof construction |
| 02/11/1999 | CA2298508A1 Concrete supply arm with articulated sections |
| 02/10/1999 | EP0896108A2 Method for installing and tensioning a free tendon, and device for carrying out the method |
| 02/09/1999 | US5868180 For directing the flow of fluid material to a defined space |
| 02/09/1999 | US5868156 Concrete distribution system for transportable concrete |
| 02/09/1999 | US5867950 Device for lifting a framework, optionally together with a portion of a building resting on said framework |
| 02/04/1999 | DE19745063C1 Tool for bending concrete reinforcement rods |
| 02/04/1999 | DE19728016A1 Prefabricated wall-panel especially for use in building |
| 02/03/1999 | EP0894915A1 Concrete supply arm with articulated sections |
| 02/03/1999 | EP0894172A1 Conveyor elevating techniques |