| Patents for E04H 12 - Towers; Masts, poles; Chimney stacks; Water-towers; Methods of erecting such structures (12,702) |
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| 04/28/1987 | CA1220924A1 Tower base assembly |
| 04/23/1987 | DE3635419A1 Standing umbrella |
| 04/23/1987 | DE3626483A1 Chimney renewal insert |
| 04/21/1987 | US4659046 Traffic control device mast arm bracket |
| 04/15/1987 | CN85201790U Pneumatic parachute jumping tower |
| 04/15/1987 | CN85107344A Method for providing a tubular node in a frame-type truss strueture such as off-shore platforms for oil drilling and production |
| 04/14/1987 | US4656804 Cylindrical mast element for end to end assembly with other elements so as to constitute a mast |
| 04/08/1987 | EP0217151A2 Tensioning and clamping device for cables, belts or the like |
| 04/08/1987 | EP0217051A2 Publicity and/or decoration device for outdoor display |
| 04/07/1987 | US4655022 Jointed extendible truss beam |
| 03/31/1987 | US4654540 Group operated circuit disconnect apparatus for overhead electric power lines |
| 03/26/1987 | WO1987001755A1 Device for lighting up flags |
| 03/25/1987 | EP0091433B1 Protective shelter, such as a parasol, with an offset support |
| 03/24/1987 | US4651480 High strength multicomponent extendible structure |
| 03/24/1987 | US4651399 Method for manufacturing pins particularly intended for anchoring in the ground posts or stakes, and pins obtained thereby |
| 03/24/1987 | CA1219429A1 Utility pole support |
| 03/18/1987 | EP0214796A2 Self elevating scaffold |
| 03/18/1987 | EP0214519A2 Ground fixing device |
| 03/17/1987 | US4649678 Marker post system |
| 03/04/1987 | EP0128901B1 Improvements in columns |
| 03/03/1987 | US4646505 Structural element |
| 03/03/1987 | US4646504 Fastening member for reticulated structure |
| 03/03/1987 | US4646489 Plastic fence post bottom repair device |
| 03/03/1987 | CA1218638A1 Column mounted apparatus |
| 02/25/1987 | EP0211399A1 Manufacturing process of a gastight and insulating lining for a detached chimney |
| 02/24/1987 | US4644722 With magnesium phosphate cement |
| 02/24/1987 | US4644715 Soil excavating sleeve |
| 02/24/1987 | US4644713 Post anchor device |
| 02/11/1987 | CN86104899A Method for mending chimney without stopping production |
| 02/10/1987 | US4641478 Construction bolt holder |
| 02/04/1987 | EP0210776A2 Collapsible truss unit, and frameworks constructed by combinations of such units |
| 02/03/1987 | CA1217474A1 Angle drilling apparatus |
| 02/03/1987 | CA1217311A1 Storage tank construction |
| 01/27/1987 | US4638611 Guy-wire guard assembly and fastening systems therefor |
| 01/21/1987 | EP0209083A1 Extendible structure |
| 01/20/1987 | US4637193 Connecting apparatus |
| 01/20/1987 | US4637192 Telescoping support structure |
| 01/20/1987 | US4637186 Fence pole |
| 01/20/1987 | US4637180 Clip for self-locking collapsible/expandable structures |
| 01/14/1987 | EP0208037A1 Lightweight tower assemblies for antennas and the like |
| 01/14/1987 | EP0143798B1 Post for traffic signs, lighting and the like |
| 01/14/1987 | CN85201537U Flag post equipped with blower for blowing the flag |
| 01/08/1987 | DE3522826A1 Device for locking doors on hollow masts |
| 01/06/1987 | US4634120 Locator plug for ground anchor |
| 01/06/1987 | US4633624 Assembly of components trestle type for outside fittings |
| 01/06/1987 | US4633566 Apparatus and method for constructing and disassembling a truss structure |
| 12/31/1986 | WO1986007620A1 Post |
| 12/30/1986 | EP0205955A2 Tipping mast |
| 12/23/1986 | US4630413 Post for traffic signs, lighting and the like |
| 12/23/1986 | CA1215516A1 Structural member |
| 12/10/1986 | EP0204608A1 Cable support for a utility pole |
| 12/10/1986 | EP0204607A1 Mast made from plastic material for supporting especially electric wires, and device for winding fibres around this mast |
| 12/03/1986 | EP0203857A1 Mast, especially for supporting electric or telephone wires |
| 12/02/1986 | US4625839 Overhead trolley wire insulated support post |
| 12/02/1986 | US4625475 Extensible mast |
| 11/26/1986 | CN86103634A Special pole for supporting electric wire or telephone wire |
| 11/26/1986 | CN86103605A Electric cable holder of wire pole |
| 11/26/1986 | CN86103535A Plastic pole for holding wire and device for fibre winding |
| 11/20/1986 | EP0201645A2 Telescoping lightweight antenna tower assembly and the like |
| 11/12/1986 | CA1213787A Manufacture of ground anchors for posts, pickets and the like |
| 11/05/1986 | CN86101025A Telescoping lightweight antenna tower assembly and the like |
| 11/05/1986 | CN86100640A Lightweight assemblies for antennas and the like |
| 11/04/1986 | US4620693 Pole lifting apparatus |
| 11/04/1986 | US4620405 Structural member |
| 10/22/1986 | CN85202543U Flag post with air-blower |
| 10/21/1986 | US4617768 Poleshaped supporting member, and base structure for attachment of same |
| 10/15/1986 | EP0197500A1 Apparatus and method for constructing and disassembling a truss structure |
| 10/14/1986 | US4616457 Enhanced safety flue construction |
| 10/07/1986 | US4615156 Post anchor |
| 10/07/1986 | US4615154 Utility line transmission tower apparatus |
| 09/30/1986 | US4614070 Support shoe |
| 09/23/1986 | US4612750 Pre-stressed truss-like beam with elements in buckled state |
| 09/23/1986 | CA1211611A1 Clip for self-locking collapsible expandable structure |
| 09/09/1986 | CA1211100A1 Air water cranes |
| 09/03/1986 | EP0192756A1 Post-holder |
| 09/02/1986 | CA1210606A1 Chimney cap |
| 08/27/1986 | EP0192094A1 Device for locking and unlocking tubular members telescopically and concentrically slidable into one another |
| 08/26/1986 | CA1210215A1 Telescoping tower for floodlighting equipment and the like |
| 08/19/1986 | US4606366 Protective shelter, such as an umbrella with offset support |
| 08/19/1986 | US4606155 Angle drilling apparatus |
| 08/13/1986 | EP0191001A1 A device for removably connecting hollow cylindrical elements in masts for sailing transport means |
| 08/12/1986 | US4604844 Deployable M-braced truss structure |
| 08/06/1986 | EP0189962A2 Dividing wall, shealding wall, fencing or the like, including vertical posts and a thereby supported web-shaped material |
| 08/05/1986 | US4603526 Ground securing device |
| 07/22/1986 | US4601152 Truss structure and method of construction |
| 07/15/1986 | US4600980 Portable light support apparatus |
| 07/15/1986 | US4599832 Extendible structures |
| 07/09/1986 | CN85109747A Modular utility pole |
| 07/09/1986 | CN85108972A Repair systems for wooden poles |
| 07/08/1986 | US4598512 Single bracket support and method |
| 07/08/1986 | US4598509 Method and apparatus for raising and lowering a telescoping mast |
| 07/08/1986 | CA1207156A1 Self-anchoring fence post and method of installing same |
| 07/02/1986 | EP0185957A2 Vertex fittings derived from a master fitting |
| 06/24/1986 | US4596262 Umbrella support construction |
| 06/24/1986 | US4596105 Crossarm brace for utility pole |
| 06/18/1986 | EP0184947A2 Pole structure with diagonal inner bracing |
| 06/17/1986 | US4594824 Telescoping tower for floodlighting equipment and the like |
| 06/11/1986 | EP0184531A1 Fixture for an electrical overhead line |
| 06/10/1986 | US4593877 Flag or banner pole support bracket |
| 06/10/1986 | US4593872 Anchoring device for posts for fences, guard-rails, tents etc. |