Title:
Adjustable length joist
United States Patent 3325957


Inventors:
Demeules, Eugene A.
Demeules, Jay A.
Application Number:
US28665063A
Publication Date:
06/20/1967
Filing Date:
06/10/1963
Assignee:
STANDARD IRON & WIRE WORKS INC
Primary Class:
Other Classes:
52/694
International Classes:
E04G11/56
View Patent Images:
US Patent References:
3221461Beam construction1965-12-07
1911018Structural unit1933-05-23
1620293Welded beam1927-03-08
1563118Fabricated structural member1925-11-24
Foreign References:
DE840435C1952-06-09
DE810081C1953-12-14