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The ornamental design for a roof ladder, as shown and described. |
FIG. 1 is a view of the front face of the roof ladder;
FIG. 2 is a view of the rear face of the roof ladder;
FIG. 3 is a view of the right face of the roof ladder;
FIG. 4 is a view of the left face of the roof ladder;
FIG. 5 is a view of the top face of the roof ladder;
FIG. 6 is a view of the bottom face of the roof ladder; and,
FIG. 7 is an isometric view of the roof ladder.
Patent | Priority | Assignee | Title |
Patent | Priority | Assignee | Title |
4632219, | Aug 12 1985 | Roof ladder | |
4923049, | Mar 29 1989 | Wing extension for roof ladder | |
D372987, | Aug 04 1995 | Ladder |
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