| Patents for E04G 3 - Scaffolds essentially supported by building constructions, e.g. adjustable in height (4,845) |
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| 12/17/1985 | US4558764 For use on a roof |
| 11/21/1985 | EP0161388A1 Work platform |
| 11/12/1985 | US4552248 Portable climbing device |
| 11/05/1985 | US4550541 Scaffolding |
| 10/23/1985 | EP0159250A1 Means for attaching a scaffold bracket to a roof rafter and attaching assembly for its application |
| 10/23/1985 | EP0158755A1 Modular safety walk, especially for servicing cable bearing rocker bogies of rope railway systems |
| 10/08/1985 | US4545558 Platform suspending davit mounting apparatus and method |
| 09/03/1985 | US4538705 Method and apparatus for moving a platform into a suspended outboard position |
| 08/13/1985 | US4534446 Movable walkway system of use in the construction industry |
| 08/06/1985 | CA1191572A1 Tension sensing device |
| 07/10/1985 | EP0147731A2 Walkways for use in the construction industry |
| 07/04/1985 | WO1985002879A1 Supporting device for scaffolding |
| 06/20/1985 | WO1985002642A1 Scaffolding |
| 05/29/1985 | EP0142963A2 Scaffolding |
| 05/29/1985 | EP0142843A2 Supporting element for a suspended scaffold |
| 05/29/1985 | EP0142529A1 Self propelled scaffold for buildings. |
| 05/23/1985 | WO1985002219A1 Scaffolding |
| 05/15/1985 | EP0141730A2 Anchoring device for devices used for working on roofs |
| 05/14/1985 | US4516661 Safety device for scaffold |
| 04/30/1985 | US4513952 Drive mechanism for cable drums |
| 02/05/1985 | US4497389 Method of erecting drop scaffolding, a drop scaffolding structure, and a scaffold coupling therefor |
| 01/29/1985 | US4496027 Mobile outrigger for suspending scaffold |
| 10/25/1984 | WO1984004127A1 Self propelled scaffold for buildings, cable tensioner and method for building and/or maintaining high buildings |
| 10/16/1984 | US4476958 Safety device for scaffold |
| 09/11/1984 | CA1174229A1 Drive mechanism for cable drums |
| 08/29/1984 | EP0117066A1 Scaffold platform |
| 07/31/1984 | US4462484 In a scaffold |
| 06/19/1984 | US4454928 Movable scaffold for buildings |
| 06/19/1984 | US4454818 Coupling trolley for a beam |
| 06/12/1984 | US4453619 Telescoping wall scaffold |
| 05/29/1984 | US4450935 Portable adjustable roof platform |
| 05/22/1984 | US4450121 Apparatus and method for bridge deck construction |
| 04/24/1984 | US4444289 Construction platform and method |
| 04/11/1984 | EP0105064A1 Drive mechanism for cable drums |
| 04/10/1984 | US4441583 Grating cable hanger |
| 03/01/1984 | WO1984000788A1 Foldable bracket, particularly for a roof ladder |
| 02/22/1984 | EP0101385A1 Pivotal platform for a roof ladder |
| 01/31/1984 | US4428457 Window bracket support and scaffolding for building exterior |
| 01/25/1984 | EP0099298A1 Fastening means to a building and application to the realization of scaffoldings |
| 12/20/1983 | US4421205 Magnetic ship's hog line holder |
| 12/06/1983 | US4418791 Device for enhancing the versatility of cranes or the like |
| 11/16/1983 | EP0094297A1 Hanging scaffold movable with respect to a structure, and method of moving such a scaffold |
| 11/08/1983 | US4413707 Suspended chain scaffolding employing adjustable posts with chain threaded therethrough |
| 10/12/1983 | EP0022874B1 Suspended scaffolding |
| 09/20/1983 | US4404782 Suspended modular floor assembly |
| 08/30/1983 | US4401184 Roof skid |
| 08/30/1983 | CA1153044A1 Building scaffold support |
| 08/16/1983 | US4398620 Apparatus for supporting a working platform on a pitched roof |
| 06/21/1983 | US4388982 Foothold device |
| 06/08/1983 | EP0080828A1 Improvements related to scaffolding |
| 05/18/1983 | EP0079146A1 Raisable and lowerable vertical platform system |
| 04/05/1983 | US4378860 Movable staging scaffold system for building construction |
| 12/22/1982 | EP0067248A1 Device for suspending hanging scaffolds |
| 09/07/1982 | CA1131183A1 Safety landing |
| 06/29/1982 | CA1126793A1 Girder fittings |
| 06/15/1982 | US4334662 Lanyard support for metal building roof |
| 05/26/1982 | EP0052439A1 Scaffold suspension structure |
| 05/26/1982 | EP0052438A1 A method of erecting drop scaffolding, a drop scaffolding structure and a scaffold coupling therefor |
| 04/28/1982 | EP0050463A1 Advancing of apparatus for refurbishing overhead structures |
| 04/27/1982 | US4326602 Portable stabbing board |
| 04/06/1982 | US4323140 Safety landing |
| 03/23/1982 | US4320816 Window perch |
| 03/03/1982 | EP0038361A4 Folding scaffold system. |
| 01/27/1982 | EP0044599A2 Process for manufacturing a platform for scaffoldings and platform obtained by using said process |
| 01/05/1982 | US4309023 Suspension apparatus for a scaffold |
| 10/28/1981 | EP0038361A1 Folding scaffold system |
| 10/27/1981 | US4296905 Building scaffold support |
| 09/09/1981 | EP0035424A1 Hanging scaffold for a building |
| 09/02/1981 | EP0034819A2 Movable scaffold |
| 07/07/1981 | US4276959 Quick way scaffold |
| 07/07/1981 | US4276957 Portable scaffold assembly with movable anchor |
| 06/30/1981 | CA1104175A1 Automatic anti-tilt device for stopping the tilting movement of a scaffolding suspended from two or more winches |
| 06/23/1981 | US4274507 Portable support for a scaffold |
| 06/09/1981 | US4271927 Inspection or maintenance cradle |
| 05/14/1981 | WO1981001308A1 Folding scaffold system |
| 04/28/1981 | US4263985 Movable scaffold support |
| 04/22/1981 | EP0027117A1 Clamp for attachment to structural steelwork |
| 04/14/1981 | CA1099316A1 Girder roller fittings |
| 03/24/1981 | US4257491 Scaffold apparatus |
| 03/17/1981 | US4256201 Scaffolding frame members |
| 03/03/1981 | US4253549 Method and a system for the erection of high buildings |
| 03/03/1981 | US4253548 Folding scaffold system |
| 02/03/1981 | US4248026 Trolley for installing prefabricated building panels |
| 01/28/1981 | EP0022874A1 Suspended scaffolding |
| 12/09/1980 | US4237999 Automatic anti-tilt device for scaffoldings |
| 11/25/1980 | US4235305 System for inspecting reinforcing cables |
| 11/18/1980 | US4234055 Mobile suspension scaffold system |
| 10/30/1980 | WO1980002305A1 Clamp for attachment to structural steelwork |
| 10/28/1980 | CA1088662A1 Aluminum cluster mount |
| 09/30/1980 | US4225012 Safety clamp device and apparatus utilizing same |
| 09/23/1980 | CA1086018A1 Method and a system for the erection of high buildings |
| 09/03/1980 | EP0014811A1 Removable device for fixation on a roof |
| 06/26/1980 | WO1980001298A1 Scaffolding device |
| 06/03/1980 | CA1078895A1 Mobile rolling support system for scaffolding used in building construction |
| 05/28/1980 | EP0011113A1 Hoist for façade |
| 05/14/1980 | EP0010620A1 Hoist for a facade |
| 05/06/1980 | US4201275 Means for the renovating and refurbishing of overhead structures |
| 05/06/1980 | US4200955 Girder roller fittings |
| 04/02/1980 | EP0009058A1 Suspending apparatus for a facade's maintenance platform |
| 04/01/1980 | US4195708 Work chair for aerial lift |