| Patents for E06C 1 - Ladders in general (5,355) |
|---|
| 01/31/1991 | DE3933598A1 Fighter aircraft cockpit access ladder - incorporates longerons made from trunks of pine trees |
| 01/23/1991 | CN2069919U Foldable high building life ladder |
| 01/23/1991 | CN2069918U Multi-function ladder |
| 01/15/1991 | US4984785 Device for simulating climbing |
| 01/02/1991 | CN2068576U Domestic folding ladder |
| 01/01/1991 | US4981195 Alternating tread ladder apparatus |
| 12/27/1990 | WO1990015915A1 A collapsible ladder |
| 12/26/1990 | CN2068141U Light steel ladder |
| 12/25/1990 | US4979590 Ladder platform |
| 12/25/1990 | US4979340 Mobile folding choral riser |
| 12/12/1990 | CN1047719A Ladder support |
| 12/04/1990 | US4974701 Step ladder construction |
| 11/29/1990 | WO1990014493A1 Ladder with four-point footing |
| 11/29/1990 | WO1990014491A1 Extension ladder |
| 11/27/1990 | US4972571 Method of making a ladder |
| 11/15/1990 | WO1990013711A1 A multifunctional device that may be transformed in an ironing board and in a home step-ladder |
| 11/13/1990 | US4969620 Stud climbing/support device |
| 10/23/1990 | US4964488 Ladder stabilizer |
| 10/11/1990 | DE3910327A1 Stepladder with connecting means |
| 10/02/1990 | US4959935 Adjustable stairway |
| 09/19/1990 | EP0247101B1 Safety rope designed as a rope ladder |
| 09/11/1990 | US4955750 Rope fastener |
| 09/05/1990 | EP0385870A1 Connecting device for maintaining the angle between two elements connected by a hinge |
| 09/05/1990 | EP0384954A1 Joint protection for ladders |
| 08/28/1990 | US4951780 Combination ladder and height adjustable scaffold |
| 08/21/1990 | US4949809 Extendable pole locking mechanism for ladder stabilizer |
| 08/16/1990 | EP0381674A1 Mobile folding choral riser. |
| 08/14/1990 | US4947960 Connecting element |
| 08/14/1990 | US4947959 Folding ladder |
| 08/08/1990 | EP0381641A1 Improved ladder cords for venetian blinds |
| 08/07/1990 | US4946004 Pole gripping ladder stabilizing device |
| 08/07/1990 | US4945971 Ladder cords for venetian blinds |
| 07/25/1990 | EP0379422A1 Ladder obtained from combining two single ladders |
| 07/25/1990 | EP0378801A1 Rolling ladder |
| 07/25/1990 | CA2007283A1 Ladder cords for venetian blinds |
| 07/24/1990 | US4943246 Electrical connector for wire connection |
| 07/18/1990 | EP0378375A1 Ladder platform |
| 07/12/1990 | DE3900176A1 Pivot articulation for standard ladders, scaffolding upon which it is possible to walk, and the like |
| 07/05/1990 | DE3844274A1 2 Support screws for a ladder |
| 07/03/1990 | US4938312 Ladder ridge hook and stand off |
| 06/21/1990 | DE3941121A1 Step-ladder foot extension - has separate guide for adjustable foot-rail secured to ladder upright |
| 06/21/1990 | DE3842302A1 Step or platform for a stepladder |
| 06/19/1990 | US4934485 Combination ladder and hand truck |
| 06/13/1990 | EP0372897A1 Ladder Stabilizer |
| 06/05/1990 | CA2004466A1 Ladder stabilizer |
| 05/29/1990 | US4928792 Joint for ladders |
| 05/23/1990 | EP0369256A1 Hinge ladder |
| 05/22/1990 | US4926968 Ladder supports |
| 05/22/1990 | US4926967 Folding ladders |
| 05/22/1990 | US4926964 Step/extension ladder |
| 05/17/1990 | WO1990005234A1 Foldable fire-escape ladder |
| 05/15/1990 | US4925329 Joint for foldable ladders |
| 05/15/1990 | US4924971 Ladder safety apparatus |
| 05/15/1990 | US4924970 Ladder apparatus |
| 05/08/1990 | US4923050 Ladder support |
| 05/08/1990 | US4923049 Wing extension for roof ladder |
| 05/03/1990 | DE3933431A1 Roof tile, or facade panel fastener - has retaining hooks on spike driven into support structure |
| 05/02/1990 | EP0365889A1 Strike point for connecting objects to a framework |
| 04/24/1990 | US4919229 Stable working platform |
| 04/18/1990 | CN2056187U Multifunctional foldable ladder |
| 04/17/1990 | US4917216 Segmented ladder construction |
| 04/05/1990 | WO1990003487A1 Arrangement in fire escape ladder |
| 04/04/1990 | CN1007448B Articulate element for foldable support |
| 04/03/1990 | US4913262 Mechanical connection element |
| 04/03/1990 | CA1267394A1 Ladder support |
| 03/29/1990 | DE3912970A1 Fire escape rope - with knots and specified safety discs |
| 03/28/1990 | EP0359970A1 Locking hinge for a multipurpose ladder |
| 03/27/1990 | US4911263 Ambulatory ladder |
| 03/21/1990 | EP0359046A1 Connecting element |
| 03/13/1990 | US4907675 Modular constructional element in particular of a ladder or scaffolding |
| 03/13/1990 | CA1266698A1 Observation platform and support |
| 03/13/1990 | CA1266635A1 Collapsible ladder |
| 03/08/1990 | WO1990002241A1 Compressible roller for loadable equipment |
| 03/01/1990 | DE3828750A1 Ladder comprising lightweight-metal hollow profiles and having a manual equipment lift |
| 02/13/1990 | US4899849 Ladder stabilizer |
| 02/13/1990 | US4899847 Mobile supports |
| 02/07/1990 | EP0353536A1 Hinge for multipurpose ladder |
| 01/31/1990 | EP0352307A1 Folding steps |
| 01/25/1990 | WO1990000665A1 Ladder levelling device |
| 01/17/1990 | CN2051277U 折叠式梯子 Folding ladder |
| 01/09/1990 | US4892170 Portable ladder assembly |
| 01/02/1990 | US4890950 Positioning joint for a folding ladder |
| 12/21/1989 | DE3819944A1 Fastening of a part on a ladder string |
| 12/20/1989 | CN2049672U Three-purpose portable ladder |
| 12/14/1989 | DE3819741A1 Stepladder |
| 12/05/1989 | US4884659 Collapsible ladder |
| 11/30/1989 | WO1989011313A1 Emergency escape ladder |
| 11/23/1989 | EP0343041A1 Electrical motor-powered ladder |
| 11/14/1989 | US4880200 Ladder bracket |
| 10/11/1989 | EP0336315A1 Device for preventing non authorised persons from climbing a ladder |
| 10/11/1989 | CN2045775U Ii type aluminium alloy all-purpose folding ladder |
| 10/10/1989 | US4872529 Ladder stabilizer assembly |
| 10/04/1989 | CN2045419U Portable multipurpose folding ladder |
| 09/27/1989 | CN2045022U 折叠梯子 Folding ladder |
| 09/26/1989 | US4869345 Radome ladder |
| 09/26/1989 | CA1259968A1 Folding stepladder |
| 09/19/1989 | US4867275 Escape ladder |
| 08/17/1989 | DE3804306A1 Stepladder |
| 08/09/1989 | EP0327323A1 Ladders |
| 08/08/1989 | US4854420 Securing means for a double step ladder |