Escape ladder

Details Escape ladder Escape ladder

1994-08-12

1996-06-11

Clark, Doris

Building units and construction elements

Stair, ladder, scaffold, or similar support

Stepped

Patent

active

D03707369

REFERENCES:
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patent: 5024293 (1991-06-01), Yang et al.
Dial Safety Ladder Corporation pricing sheet, undated, presumed published prior to Jan. 1, 1993, 1 page.
MLM Machine and Metal Products, Comparison of 2-Story Fire Escape Ladders, presumed published in or about 1993, 1 page.
MLM Machine Machine and Metal Products, RES-Q-LADDER Price List, dated Dec., 1993, 1 page.
Consumer Reports Article entitled "Fire-Escape Ladders: Making a fast exit easy", Oct. 1991, 1 page.

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