Title:
Box beam
United States Patent 3103262


Inventors:
Handley, Harold E.
Application Number:
US77388358A
Publication Date:
09/10/1963
Filing Date:
11/14/1958
Assignee:
MC GRAW EDISON CO
Primary Class:
Other Classes:
52/693, 52/843, D25/132
International Classes:
E04C3/09; E04C3/04
View Patent Images:
US Patent References:
2936051Metal structural unit1960-05-10
2447694Ceiling and wall construction1948-08-24
2383584Method of flanging bimetallic plate1945-08-28
2373901Boss forming process1945-04-17
2315687Construction unit1943-04-06
2177277Metal stud1939-10-24
1866583Composite metal work1932-07-12
0845350N/A1907-02-26
Foreign References:
GB126760A1919-05-22
GB395533A1933-07-20
GB435630A1935-09-25
GB742629A1955-12-30
AU71331A1931-10-22
AT134131B1933-07-10