| Patents for E06C 1 - Ladders in general (5,355) | |
|---|---|
| 11/1981 | |
| 11/03/1981 | US4298092 Device at unfoldable escape-ladder |
| 10/1981 | |
| 10/27/1981 | CA1111394A1 Folding, collapsible ladder assembly |
| 10/20/1981 | US4295544 Platform stepladder |
| 09/1981 | |
| 09/22/1981 | US4290241 Stave assemblies, staves, and tubs constructed therewith |
| 09/01/1981 | US4286353 Multi-element connection for structural members |
| 08/1981 | |
| 08/20/1981 | WO1981002322A1 Ladder |
| 08/18/1981 | US4284171 Convertible ladder |
| 08/12/1981 | EP0033475A1 Double ladder |
| 07/1981 | |
| 07/21/1981 | US4279327 Ventilating ladder |
| 07/07/1981 | US4276958 Personnel chain climber |
| 07/07/1981 | US4276955 Multiple-purpose work unit |
| 06/1981 | |
| 06/23/1981 | CA1103629A1 No translation available |
| 05/1981 | |
| 05/12/1981 | US4266631 Extension ladders with rotary hook locks |
| 05/05/1981 | US4265333 Portable fence stile |
| 04/1981 | |
| 04/28/1981 | US4263983 Single stile ladder |
| 04/07/1981 | US4260039 Folding, collapsible ladder assembly |
| 03/1981 | |
| 03/31/1981 | US4258828 Folding mast ladder |
| 03/31/1981 | US4258827 Multi-purpose piece of furniture for use as chair and step-ladder |
| 03/31/1981 | US4258826 Combination stepladder and load lifting apparatus |
| 03/24/1981 | US4257490 Portable observation stand |
| 03/24/1981 | CA1097878A1 Ship ladder |
| 03/17/1981 | US4256200 Double extendible or support ladder |
| 03/03/1981 | US4253546 Hand truck |
| 02/1981 | |
| 02/10/1981 | US4249637 Tripod stepladder |
| 02/03/1981 | CA1095000A1 Manhole shield ladder |
| 01/1981 | |
| 01/27/1981 | US4246981 Portable observation stand |
| 01/20/1981 | CA1094028A1 Ladders |
| 01/13/1981 | US4244444 Walking stepladder |
| 01/13/1981 | US4244443 Drawer type emergency escape |
| 01/06/1981 | US4243121 Web ladder release mechanism |
| 12/1980 | |
| 12/30/1980 | US4241809 Rope ladder with molded hard elastomer steps and a method for assembly of the same |
| 12/23/1980 | US4240522 Extension trestle ladder |
| 12/23/1980 | US4240521 Drawer type emergency escape |
| 12/02/1980 | US4236601 Turning type emergency escape |
| 12/02/1980 | US4236599 Stools |
| 11/1980 | |
| 11/27/1980 | WO1980002581A1 Escape-ladder |
| 11/25/1980 | US4235449 Combined hand truck and step stool |
| 11/11/1980 | US4232761 Extensible ladder |
| 11/04/1980 | US4231449 Foldable ladder |
| 10/1980 | |
| 10/28/1980 | US4230202 Roofing aid |
| 10/07/1980 | US4226302 Sectional ladder lock |
| 10/07/1980 | CA1087142A1 Ladder truck |
| 09/1980 | |
| 09/16/1980 | US4222460 Extension ladders |
| 09/02/1980 | US4220346 Utility cart |
| 08/1980 | |
| 08/20/1980 | EP0014631A1 Telescopic ladder structure |
| 08/05/1980 | US4215766 Construction module |
| 07/1980 | |
| 07/01/1980 | US4210224 Longitudinally variable ladder |
| 07/01/1980 | CA1080675A1 Construction module |
| 05/1980 | |
| 05/27/1980 | US4204587 Ladder constructions |
| 05/20/1980 | CA1077660A1 Self-locking hinge |
| 05/13/1980 | US4202428 Ladder |
| 04/1980 | |
| 04/22/1980 | US4199041 Bunk bed-ladder arrangement |
| 04/22/1980 | US4199040 Ship ladder |
| 03/1980 | |
| 03/25/1980 | CA1074270A1 Fire ladder and method of constructing same |
| 03/18/1980 | US4193477 Ladder structure |
| 03/18/1980 | US4193476 Link ladder |
| 02/1980 | |
| 02/19/1980 | US4189030 Web ladder |
| 02/19/1980 | CA1072065A1 Portable escape ladder |
| 02/12/1980 | US4187928 Stepladders |
| 02/12/1980 | CA1071596A1 Folding step ladder |
| 02/05/1980 | US4186820 Boarding ladder and straps |
| 01/1980 | |
| 01/23/1980 | EP0007311A1 Self-locking hinge |
| 01/08/1980 | US4182431 Combination extension and step ladder rungs therefor |
| 12/1979 | |
| 12/18/1979 | US4179011 Roofing ladder and braces therefor |
| 12/11/1979 | US4177878 Rope ladder |
| 11/1979 | |
| 11/28/1979 | EP0005690A2 Double extension ladder or stepladder |
| 11/27/1979 | US4175641 Step ladder leg support |
| 11/13/1979 | US4174021 Ladder truck |
| 09/1979 | |
| 09/04/1979 | US4166516 Adjustable caster |
| 08/1979 | |
| 08/28/1979 | CA1061298A1 Web ladder |
| 07/1979 | |
| 07/31/1979 | US4162861 Structural joint |
| 07/24/1979 | US4161998 Fire escape device |
| 07/12/1979 | WO1979000423A1 Self-locking hinge |
| 06/1979 | |
| 06/27/1979 | EP0002549A1 Multiple purpose collapsible ladder |
| 06/05/1979 | US4157130 Fire ladder and method of constructing same |
| 06/05/1979 | US4157128 Self-locking hinge |
| 05/1979 | |
| 05/22/1979 | US4155422 Combination step, stair well and extension ladders |
| 05/08/1979 | US4152810 Automatically interlockable hinge |
| 04/1979 | |
| 04/03/1979 | US4146941 Boat bow ladder assembly |
| 03/1979 | |
| 03/27/1979 | US4146114 Manhole shield ladder |
| 03/20/1979 | CA1050943A1 Collapsible ladder |
| 03/13/1979 | US4143741 Portable escape ladder |
| 02/1979 | |
| 02/27/1979 | CA1049471A2 Ladder |
| 02/27/1979 | CA1049470A1 Mobile ladder |
| 02/21/1979 | EP0000848A1 Hinge for folding ladders |
| 02/13/1979 | US4139080 Hunter's tree stand |
| 02/13/1979 | US4139079 Flexible stile or rope ladder for climbing poles or like members |
| 02/07/1979 | EP0000499A1 Hinge furnishing for ladder elements |
| 02/06/1979 | CA1047995A2 Ladder |
| 02/06/1979 | CA1047994A2 Ladder |
| 02/06/1979 | CA1047993A1 Ladder |
| 02/06/1979 | CA1047991A1 Extensible ladder |
| 01/1979 | |
| 01/24/1979 | EP0000344A1 Improvements in or relating to ladders |
| 01/23/1979 | US4135605 Welding ladder with folding and sliding rungs |
| 01/23/1979 | US4135604 Vanity storing step |
| 01/02/1979 | US4132288 Ladder with retractable rungs |
| 12/1978 | |
| 12/19/1978 | US4130316 Step ladder/chair combination |
| 12/19/1978 | US4130181 Ladder support system |
| 12/19/1978 | CA1044669A1 Metallic ladder |
| 11/1978 | |
| 11/14/1978 | CA1042335A1 Portable riser |