| 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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| 08/15/1978 | US4106743 Adjustable bulkhead for concrete wall forms |
| 08/15/1978 | US4106259 Automatic apparatus for laying block units |
| 08/15/1978 | CA1036381A1 Anchor insert for embedment in a concrete slab |
| 08/08/1978 | US4105355 Device for tamping and leveling concrete and the like |
| 07/25/1978 | US4102463 Transporter for slab casting tables |
| 07/04/1978 | US4098040 Concrete block panel |
| 06/20/1978 | US4095748 Apparatus for mixing a cement slurry with a glass fiber |
| 06/20/1978 | US4095343 Building layout templates |
| 06/20/1978 | US4095335 Automatic tube puller |
| 06/20/1978 | US4095326 Method and apparatus for inserting post-stressing tendons in concrete structures |
| 06/06/1978 | US4093172 Tool for bricklaying |
| 05/30/1978 | US4092046 Pneumatic feeder-dispenser for bulk material |
| 05/09/1978 | US4087947 Edge-lifting system for a concrete slab |
| 05/02/1978 | US4086970 Vibration absorbing device for portable vibrators |
| 04/25/1978 | US4085958 Flue liner handling device |
| 04/25/1978 | US4085853 Construction of buildings or parts thereof |
| 04/25/1978 | US4085556 Device for anchoring fixing means in a concrete element |
| 04/18/1978 | US4084321 Neoprene sleeve; for anchoring and positioning an aligning cord |
| 04/11/1978 | US4083156 Apparatus for bracing a tilt-up wall panel |
| 03/28/1978 | US4080739 Batter board |
| 03/21/1978 | US4079977 Apparatus for use in building |
| 03/21/1978 | US4079556 Wall support device |
| 03/21/1978 | US4079497 Method of making substantially impenetrable members |
| 03/21/1978 | US4079486 Means for anchoring a ring tensioning member in a circular container, especially a concrete tank or a concrete tube |
| 02/28/1978 | US4075913 Remotely operable mechanism for disconnecting a pickup unit from a tilt-up concrete wall slab |
| 02/21/1978 | US4074802 Concrete receiver and placer for road paving |
| 02/21/1978 | US4074503 Brick laying device |
| 02/14/1978 | US4073593 Method and apparatus for providing a power screed board |
| 01/31/1978 | US4070833 Bracing apparatus |
| 01/24/1978 | US4069699 Apparatus for stabilizing structural studs |
| 01/17/1978 | US4069283 Method of curing and protecting a concrete column |
| 01/17/1978 | US4068435 Pre-stressed tension ring structures |
| 01/17/1978 | US4068427 Wall bracing assembly and method |
| 01/10/1978 | US4067766 Automatic building block laying panel-forming machine and method |
| 01/10/1978 | CA1023929A1 Method for making reinforcing members and part thus obtained |
| 12/27/1977 | US4065098 Wedge push-in apparatus for a wire tensioning press |
| 12/27/1977 | US4064616 Method for constructing a blast furnace |
| 12/20/1977 | US4064319 Upset head at a high-strength tension wire and method for the production thereof |
| 12/06/1977 | US4061322 Jig for electrical conduit stubs |
| 12/06/1977 | US4060955 Machine for mechanical production of brick masonry |
| 11/22/1977 | US4059238 Machine for winding containers |
| 11/15/1977 | US4057903 Guide line holder |
| 11/08/1977 | US4057222 Concrete vibrator |
| 11/08/1977 | US4056912 Method for releasing tilt-up panel hoisting member |
| 11/08/1977 | US4056905 Pre-stressed concrete structures |
| 10/18/1977 | US4054014 Methods of erecting prefabricated buildings and equipment employed in such methods |
| 10/04/1977 | US4052028 Structural steelworker's safety clamp |
| 09/27/1977 | US4050205 Protective shield for utility opening in a building framing member |
| 09/20/1977 | US4048706 Method of eliminating and uneven stress distribution in an elongated reinforced member |
| 09/06/1977 | US4046484 Spaced-rotor ride-type surface working machine with single-stick control of all movements |
| 08/30/1977 | US4045003 Support devices for stanchions |
| 08/23/1977 | US4043738 Vibratory compacting machine |
| 08/23/1977 | US4043487 Mortar applying machine |
| 08/23/1977 | US4043441 Mobile pump |
| 08/16/1977 | US4042175 Apparatus and method for dispensing and reinforcing cementitious materials |
| 08/09/1977 | US4040774 Apparatus for constructing concrete walls |
| 08/02/1977 | US4039063 Run-out apparatus and method for roll-formed panels |
| 07/26/1977 | US4037824 Safety post |
| 07/12/1977 | US4034523 Graffiti protection |
| 07/05/1977 | US4033463 Work-facilitating apparatus for lining converters, metallurgical furnaces, holding vessels and like equipment |
| 06/28/1977 | US4031627 Line holders for brick and concrete block laying |
| 06/21/1977 | US4030873 Vibrating concrete screed |
| 06/07/1977 | US4027711 Means for mounting concrete structural members |
| 05/17/1977 | US4023686 Dolly for maneuvering modules of a modular wall system |
| 05/17/1977 | US4023315 Prefabricated buildings |
| 05/10/1977 | US4022330 Apparatus for mounting building panels |
| 05/10/1977 | US4021979 Aligning bracket for underground sectional precast concrete structures and method of assembly |
| 05/03/1977 | US4020610 Anchor for stone building member |
| 04/26/1977 | US4020132 Construction joint for reinforced concrete structures |
| 04/19/1977 | US4018470 Anchor insert for embedment in a concrete slab |
| 04/12/1977 | US4017115 Lift system for concrete slabs |
| 04/05/1977 | US4016024 Machine to arrange a noise insulation between two concrete elements |
| 04/05/1977 | US4015827 Support stanchion |
| 03/29/1977 | US4014151 Coupling structure with anchoring in stone parts |
| 03/15/1977 | US4011638 Joint clamp for joining intersecting brace members and method for making same |
| 03/08/1977 | US4010586 Method for the manufacture of reinforcement members and member manufactured by the method |
| 03/01/1977 | US4010203 Adhesive to concrete blocks |
| 02/22/1977 | US4008796 Control method for feeding items on a conveyor |
| 02/15/1977 | US4007821 Concrete delivery apparatus |
| 02/08/1977 | US4006574 Method of forming a construction of building substructures |
| 02/01/1977 | US4005828 Method and apparatus for stressing a tendon and banding a structure |
| 01/18/1977 | US4003553 Guardrail post assembly |
| 01/11/1977 | US4002304 Method and apparatus for stressing a tendon and banding a structure |
| 01/11/1977 | US4001988 Concrete block panel |
| 01/04/1977 | US4000592 Wall supporting structure |
| 01/04/1977 | US4000591 Holder adapted for supporting an anchor insert to be embedded in a concrete slab |
| 12/28/1976 | US3999920 Combined mortar dispenser and joint striker device |
| 12/21/1976 | US3998340 Conveyor cross |
| 12/21/1976 | US3997959 Apparatus for releasing tilt-up panel hoisting |
| 12/07/1976 | US3995843 Apparatus for supporting a window buck frame |
| 12/07/1976 | US3995834 Supports for guard rails |
| 12/07/1976 | US3995833 Removable guard rail stanchion apparatus |
| 11/23/1976 | US3993341 Deck structure and connector for building construction |
| 11/23/1976 | US3992847 Method and apparatus for installing insulation |
| 11/09/1976 | US3990532 Method and apparatus for providing a controlled movable environment |
| 11/09/1976 | US3990197 Liftable wooden frame building unit and method of construction |
| 10/12/1976 | US3985237 Device to raise and lower box-shaped construction elements, in particular prefabricated garages |
| 09/14/1976 | US3980278 Interlocking safety fence post and panel |
| 09/07/1976 | US3978626 Removable wire tie for adhesive applied wallboard installation |
| 08/31/1976 | US3977147 Flanged major modular assembly jig |