Title:
Concrete stack
United States Patent 1344608


Inventors:
Alston, Walter M.
Application Number:
US27027919A
Publication Date:
06/29/1920
Filing Date:
01/09/1919
Assignee:
BAKERDUNBAR ALLEN COMPANY
Primary Class:
Other Classes:
52/246, 52/249, 52/513, 138/148
International Classes:
E04H12/28
View Patent Images: