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Class Information
Number: 182/203
Name: Fire escape, ladder, or scaffold > Ladder > Supporting surface compensating means > Stile extension > Rung-engaging means
Description: Device wherein said stile extension includes means engaging a rung.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6745870 |
Adjustable ladder support |
Jun. 8, 2004 |
| 6640931 |
Universal, hand attachable,multi-use, l-shaped, ladder utility bracket, with ladder leveler attachment |
Nov. 4, 2003 |
| 6193013 |
Apparatus for supporting a stepladder in elevated condition |
Feb. 27, 2001 |
| 5944142 |
Apparatus for elevating a stepladder |
Aug. 31, 1999 |
| 5609222 |
Ladder leveler |
Mar. 11, 1997 |
| 5582270 |
Extension ladder pulley system |
Dec. 10, 1996 |
| 5121813 |
Ladder accessories |
Jun. 16, 1992 |
| 4984655 |
Ladder adjustment apparatus |
Jan. 15, 1991 |
| 4209078 |
Adjustable ladder leveling device |
Jun. 24, 1980 |
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