Wall construction and collapsible mold
United States Patent 2111562
Inventors:
Hughson, Fred M.
Publication Date:
03/22/1938
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Export Citation:
Assignee:
UNITED BUILDERS COMPANY
Primary Class:
Other Classes:
249/83, 249/36, 52/383, 52/428
International Classes:
E04G15/06; E04G15/00