Three-walled building block
United States Patent 1727362

Inventors:
Glenn, Bone Russell
Publication Date:
09/10/1929
View Patent Images:
Download PDF 1727362 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Glenn, Bone Russell
Primary Class:
52/605
Other Classes:
52/503, 52/98, 52/220.200
International Classes:
E04B2/42; E04B2/02