| 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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| 07/20/1988 | EP0275033A2 Anchoring apparatus |
| 07/19/1988 | US4758291 Method and apparatus for automatically applying lining material to large-area wall surfaces |
| 07/19/1988 | US4758114 Vibratory concrete screed |
| 07/19/1988 | US4757975 Long travel beam jack |
| 07/07/1988 | DE3705722A1 Reinforcement connection |
| 07/07/1988 | DE3643302A1 Shut-off framework for safeguarding traffic |
| 07/06/1988 | EP0273564A1 Tendons for prestressed concrete structure and method of using such tendons |
| 06/29/1988 | EP0272712A1 Method for manufacturing a fabric or membrane provided with at least one loop |
| 06/29/1988 | CN87209179U Wall-bonding machine |
| 06/23/1988 | DE3643019A1 Tool for applying thin-bed mortar |
| 06/23/1988 | DE3640141A1 Support for producing batter boards |
| 06/22/1988 | CN87210243U Adjustable pressed thread-pulling device |
| 06/21/1988 | US4752156 Laser-guided portable screed |
| 06/21/1988 | US4752137 Poker vibrator |
| 06/21/1988 | US4752060 Support devices for stanchions |
| 06/16/1988 | WO1988004368A1 A fastening means for fastening a protective sheet material to a scaffold or a similar frame structure |
| 06/16/1988 | DE3641985A1 Process for mounting or exchanging panels on facades |
| 06/16/1988 | DE3633633A1 Attachment point for fastening a fall-preventing means |
| 06/15/1988 | EP0270620A1 Apparatus for distributing, leveling and smoothing a coat of concrete and cement mortar for producing a floor base, and process for using such an apparatus |
| 06/15/1988 | CN86107919A Spot continual construction method for concrete pipeline |
| 06/09/1988 | DE3736077A1 Tubular support |
| 06/08/1988 | EP0270154A2 Woven material provided with loops |
| 06/08/1988 | CN87210829U Spiral sprayer for concrete |
| 06/08/1988 | CN87209077U Adjustable labour-saving brick clip |
| 06/07/1988 | US4749891 Non-linear electromagnetic vibration device |
| 06/01/1988 | DE3639978A1 Trowel, in particular for bricklaying, jointing or the like |
| 06/01/1988 | CN87209073U Inserted vacuum suction vibrator for concrete |
| 05/31/1988 | US4747470 Concrete finishers' knee skis |
| 05/25/1988 | CN87210677U Prestress tensioner using a pulley set |
| 05/19/1988 | WO1988003592A1 Building profiling tools |
| 05/19/1988 | WO1988003589A1 Trowel for the application and working of building materials |
| 05/18/1988 | EP0267763A2 Method and apparatus for emplacing horizontal arcuate re-inforcing rods |
| 05/18/1988 | CN87211619U Adjustable tension apparatus with the balance of all forces concerned |
| 05/17/1988 | US4744691 Anchoring means for tension members |
| 05/10/1988 | US4743178 Non-linear electromagnetic vibration fluid compression device |
| 05/10/1988 | US4742933 Container of plastics material |
| 05/10/1988 | US4742655 Device in concrete structures |
| 05/03/1988 | CA1236145A1 Heat insulating tarpaulin |
| 05/03/1988 | CA1236143A1 Hoisting assembly with quick-release hoisting shackle |
| 04/26/1988 | US4739592 Protective awning for scaffolding and tubular structures |
| 04/21/1988 | DE3734308A1 Block-carrying basket for the suspended conveyance of materials |
| 04/21/1988 | DE3635381A1 Insert window, comprising a plurality of elements, as technical aid for installing and removing windows, for avoiding draught air |
| 04/19/1988 | US4738335 Scaffolding system for performing a work on an outer wall surface of a building |
| 04/19/1988 | CA1235284A1 Method and equipment for the compacting of concrete |
| 04/14/1988 | DE3634093A1 Vibration generator, in particular for vibration plates |
| 04/12/1988 | US4737097 Concrete slab surface finishing tool |
| 04/07/1988 | DE3644414A1 Plastic material for filling hollow spaces within a plastic tube filled with a bundle of parallel steel wires or steel litz wires |
| 04/07/1988 | DE3632563A1 Apparatus for inserting into a shuttering for a concrete part |
| 04/06/1988 | EP0262818A2 A method and apparatus for constructing circumferentially wrapped prestressed structures utilising a membrane |
| 04/06/1988 | EP0262401A1 Holding device for an anchor bolt during the concreting of a precast concrete unit |
| 04/06/1988 | CN87212209U Inserting type concrete vibrator speeded-up by epicyclic gear |
| 04/06/1988 | CN87208369U Timing controller for charging raw material quantatively into concrete mixer |
| 03/31/1988 | DE3632703A1 Joint-shuttering element |
| 03/31/1988 | DE3632152A1 Transportation vehicle for prefabricated garages |
| 03/31/1988 | DE3632022A1 Device for applying mortar or a similar application composition |
| 03/29/1988 | US4734022 Floor-concrete grader |
| 03/24/1988 | WO1988002102A1 Guide bracket for brick laying |
| 03/24/1988 | WO1988001992A1 Process for protecting surfaces of natural and artificial stone from colour applications |
| 03/23/1988 | CN87200769U Simply vertical thread hanging method |
| 03/23/1988 | CN86106148A Multipurpose rendering machine |
| 03/22/1988 | US4733049 Machining method and apparatus |
| 03/22/1988 | US4732509 Method and a device for feeding concrete into a drill hole in the concrete boiling of a rock |
| 03/22/1988 | US4732234 Perimeter safety net system for multi-story buildings under construction |
| 03/17/1988 | DE3630134A1 Masonry-wall guide |
| 03/16/1988 | CN87206789U Equipment for ingstallation of stel brick and proteeting plate at blast furnace throat |
| 03/16/1988 | CN87203444U Microwave inner vibration shaping machine for making concrete porous plate |
| 03/10/1988 | WO1988001671A1 A lashing machine |
| 03/10/1988 | DE3728282A1 Fall-prevention means, in particular for roofing work |
| 03/09/1988 | EP0259295A1 Device for moving and manipulating heavy loads, especially prefabricated concrete elements |
| 03/09/1988 | EP0258235A1 Device in concrete structures. |
| 03/08/1988 | CA1233797A1 Bypassing double action rope grip |
| 03/08/1988 | CA1233796A1 Removable double action rope grip |
| 03/03/1988 | DE3627994A1 Method of economically processing masonry mortar with the use of vertically perforated masonry blocks, along with the simultaneous improvement of the heat-insulating quality and quality assurance |
| 03/02/1988 | EP0258158A1 Opening system of a mounting box for reinforcing members connecting two buildings parts, and box provided with such a system |
| 03/02/1988 | CN87208295U Mortar bucket carrier |
| 02/25/1988 | WO1988001330A1 Method for making a casting on a profile sheet, and profile sheet for the application of the method |
| 02/24/1988 | CN87204205U Electromagnetic direct inserting vibrating spear |
| 02/23/1988 | US4726562 Apparatus for casting an anchor in a concrete unit |
| 02/23/1988 | US4726163 Prestressed plastic bodies and method of making same |
| 02/17/1988 | CN87204369U Balance beam and worm wheel, velocity reduced type reinforcing steel prestress tensioner |
| 02/17/1988 | CN87204305U Cleaver |
| 02/17/1988 | CN86104878A Construction technology of building and building member |
| 02/16/1988 | US4724639 Prestressing anchor arrangement |
| 02/10/1988 | CN86208065U Brick-collecting rack |
| 02/03/1988 | EP0254835A1 Process for making a tunnel lining of lining concrete, and device for carrying out |
| 02/03/1988 | CN87104940A Self-progressive lining-brick laying machine for u-shaped channels |
| 02/02/1988 | US4722637 Automatic tilt adjusting bracket for a concrete finishing float |
| 02/02/1988 | CA1232151A1 Concrete screed |
| 01/28/1988 | DE3624691A1 Mounting process for roof segments |
| 01/28/1988 | DE3624247A1 Vehicle for transporting ready-made concrete garages |
| 01/28/1988 | DE3624011A1 Means for fitting a protective apparatus at a point located high up on a building |
| 01/28/1988 | DE3623859A1 Clamp appliance for bricklayers guide |
| 01/27/1988 | CN87201172U Hand-holding side pressure reinforcing bar connecting machine |
| 01/27/1988 | CN87103540A Reinforcement binding machine |
| 01/21/1988 | DE3623793A1 Process and apparatuses for transporting prefabricated masonrywork parts |
| 01/20/1988 | CN87206756U Vacuum concrete sucking mat |
| 01/20/1988 | CN87201173U Symmestric axial direction extruding reinforcing bar connecting machine |
| 01/20/1988 | CN87200741U Multipurpose lift for building |
| 01/14/1988 | WO1988000270A1 Apparatus for distributing, leveling and smoothing a coat of concrete and cement mortar for producing a floor base, and process for using such an apparatus |
| 01/12/1988 | US4718209 Wedge anchorage for a tension member in a prestressed concrete structure |