The broken lines shown in the figures are included for the purpose of illustrating portions of the ladder top which form no part of the claimed design. The broken lines showing a ladder and an impact drill in
The broken lines shown in the figures are included for the purpose of illustrating portions of the ladder top which form no part of the claimed design. The broken lines showing a ladder and an impact drill in
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D334240 | Huffine | Mar 1993 | S |
5259480 | Bartnicki | Nov 1993 | A |
5358070 | Bartnicki | Oct 1994 | A |
5573081 | Bartnicki | Nov 1996 | A |
D422717 | Bartnicki | Apr 2000 | S |
D531322 | Patton | Oct 2006 | S |
9435155 | Tiber | Sep 2016 | B2 |
D835807 | Lentine | Dec 2018 | S |
20090283361 | Gibson | Nov 2009 | A1 |