|
US4493392A
(en)
*
|
1981-01-26 |
1985-01-15 |
Andral Corp |
Convertible fold-up ladder
|
|
US4457391A
(en)
*
|
1981-01-26 |
1984-07-03 |
Andral Corporation |
Fold-up ladder
|
|
US4457397A
(en)
*
|
1981-11-10 |
1984-07-03 |
Scala John J |
Platform for stairs
|
|
EP0079852A3
(de)
*
|
1981-11-13 |
1984-05-30 |
Ruedi Giezendanner |
Als Mehrzweckgerät ausgebildete Leiter
|
|
US4463826A
(en)
*
|
1982-08-23 |
1984-08-07 |
Pearce Richard H |
Airplane tow bar and step stool combination
|
|
US4448283A
(en)
*
|
1982-09-13 |
1984-05-15 |
Andral Corporation |
Portable fold-up ladder
|
|
FR2546960A1
(fr)
*
|
1983-04-22 |
1984-12-07 |
Alufort Sa |
Dispositif de verrouillage pour echelle double a barreaux creux
|
|
GB8416639D0
(en)
*
|
1984-06-29 |
1984-08-01 |
Gostling P T |
Trestle support
|
|
US4699246A
(en)
*
|
1985-10-29 |
1987-10-13 |
Wang Yaw C |
Multipurpose ladder
|
|
US4648481A
(en)
*
|
1986-04-21 |
1987-03-10 |
Alpha Metal Corp. |
Multipurpose aluminum folding ladder equipped with a detachable stand-on board and supporting handrails
|
|
DE3627303A1
(de)
*
|
1986-08-12 |
1988-02-18 |
Geis & Knoblauch Gmbh & Co Kg |
Steiggeraet
|
|
US4719990A
(en)
*
|
1986-08-27 |
1988-01-19 |
Branko Markovic |
Step ladder for stairs
|
|
US4842098A
(en)
*
|
1988-01-22 |
1989-06-27 |
Haison Yuen |
Adjustable folding ladder
|
|
US4926967A
(en)
*
|
1988-07-27 |
1990-05-22 |
Baker Mervyn R |
Folding ladders
|
|
DE9217419U1
(de)
*
|
1992-07-23 |
1993-03-25 |
Krause-Werk Gmbh & Co Kg, 6320 Alsfeld |
Trittplatte für Leitern
|
|
US5353892A
(en)
*
|
1993-10-14 |
1994-10-11 |
Lu Feng Hui |
Ladder joint for a folding collapsible ladder
|
|
US5715910A
(en)
*
|
1995-07-20 |
1998-02-10 |
Koch; Michael W. |
Stairway platform
|
|
US7234203B2
(en)
*
|
2003-08-07 |
2007-06-26 |
Werner Co. |
Locking hinge for folding ladder
|
|
DE102006003171A1
(de)
*
|
2006-01-23 |
2007-09-06 |
Irwin Industrial Tools Gmbh |
Arbeitsbock, insbesondere Sägebock, und Werktischgestell
|
|
US9097063B2
(en)
*
|
2006-12-22 |
2015-08-04 |
Werner Co. |
Flip ladder with tray and method
|
|
US8800718B2
(en)
*
|
2008-12-30 |
2014-08-12 |
Allred & Associates Inc. |
Ultra lightweight segmented ladder/bridge system
|
|
US8448748B2
(en)
|
2008-12-30 |
2013-05-28 |
Allred & Associates, Inc. |
Ultra lightweight segmented ladder/bridge system
|
|
US8381873B2
(en)
*
|
2009-07-28 |
2013-02-26 |
Affinity Tool Works |
Ladder and support stand
|
|
US8464833B2
(en)
*
|
2010-10-05 |
2013-06-18 |
Ge Lee |
Adjustable hang ladder with fall arresting and cushioning arrangement
|
|
RU2014115226A
(ru)
*
|
2011-10-17 |
2015-11-27 |
ДИАЗ Илдефонсо АРАЛ |
Гимнастическое устройство
|
|
US8758860B1
(en)
*
|
2012-11-07 |
2014-06-24 |
Bayer Materialscience Llc |
Process for incorporating an ion-conducting polymer into a polymeric article to achieve anti-static behavior
|
|
CN103147681A
(zh)
*
|
2013-03-28 |
2013-06-12 |
河南省电力公司信阳供电公司 |
多功能抄表梯子
|
|
US9404305B1
(en)
*
|
2014-03-26 |
2016-08-02 |
Mark S. Messick |
Portable and adaptable platform
|
|
KR20170002456U
(ko)
*
|
2015-12-29 |
2017-07-07 |
임한솔 |
우마형 사다리
|
|
US10214904B2
(en)
|
2016-06-06 |
2019-02-26 |
Michael Callahan |
Trusses and similar structures
|
|
US10900282B2
(en)
*
|
2016-12-21 |
2021-01-26 |
James B. Ford |
Safety ladder
|
|
CN207436473U
(zh)
*
|
2017-08-04 |
2018-06-01 |
苏州飞华铝制工业有限公司 |
工作台梯柱的解锁结构
|
|
AU2018101664A4
(en)
*
|
2017-11-07 |
2018-12-13 |
Wan Yu Chen |
Mechanical structure
|
|
DE202018104007U1
(de)
*
|
2018-07-12 |
2018-07-25 |
Peri Gmbh |
Steckverbindung für Rahmenelemente eines Baugerüsts
|
|
GB2592673B
(en)
*
|
2020-03-06 |
2022-06-15 |
Uts Sales & Repairs Ltd |
Joint for a platform assembly
|
|
US12454839B2
(en)
*
|
2021-05-25 |
2025-10-28 |
Katherine M. Ferebee |
Portable bathtub stepstool and methods of making and using the same
|