Title:
Wall panel structures
United States Patent 2991855


Inventors:
Buell, Milton A.
Mack, Arthur H.
Application Number:
US4215860A
Publication Date:
07/11/1961
Filing Date:
07/11/1960
Assignee:
ROSCO METAL & ROOFING PRODUCTS
Primary Class:
Other Classes:
52/580, 52/783.15
International Classes:
E04B2/92
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