Ladder adjustment apparatus
US4984655A · kind A · utility
17Cited by
11References
10Claims
0Family size
Inventors
Key dates
| Filing date | Feb 23, 1990 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Feb 23, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/44
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ladder adjustment apparatus (10) which is designed to be secured to the rungs (101) of a ladder (100) whereby the apparatus (10) may be laterally shifted on the rungs (101) to position the apparatus (10) adjacent either leg (102) of the ladder without the need for physically detaching the apparatus (10) from the ladder (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.