COMPOSITE STRIP SHINGLE
United States Patent 3468092
US Patent References:
/0450087.html
- - 0450087

Shingle
- - 1403392

Roofing element
- - 1638746

Wall
- - 2117763

Shingle element
- - 2150004


Inventors:
Chalmers, Alexander A.
Publication Date:
09/23/1969
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Assignee:
ALCAN ALUMINUM CORP
Primary Class:
52/543
Other Classes:
52/419, 428/450, 428/172, 52/555, 428/921, 428/143, 52/314, 52/556, 428/130, 156/337, 428/192
International Classes:
E04D1/26; E04D1/00; E04D1/22; E04D1/28; E04D1/34
US Patent References:
3111787Sandwich roofing element
3138897Self-sealing shingle
3326366Rolled waterproofing material




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