Shingles
United States Patent 2811118
US Patent References:
/0715156.html
- - 0715156

Metallic shingle
- - 2027321

Strip shingle
- - 2173774

Ornamental sheet metal shingle for roofs and walls
- - 2188454


Inventors:
Ball, Francis M.
Publication Date:
10/29/1957
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Assignee:
Ball, Francis M.
Primary Class:
52/534
Other Classes:
52/518, 52/553, 52/536, 52/531
International Classes:
E04D1/18; E04F13/08; E04D1/12