Title:
Three-walled building block
Document Type and Number:
United States Patent 1727362

Inventors:
Glenn, Bone Russell
Publication Date:
09/10/1929
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Referenced by:
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Assignee:
Glenn, Bone Russell
Primary Class:
52/605
Other Classes:
52/503, 52/98, 52/220.200
International Classes:
E04B2/42; E04B2/02




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