Construction unit
United States Patent 2107240

Inventors:
Eilertsen, Leo W.
Publication Date:
02/01/1938
View Patent Images:
Download PDF 2107240 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
LAUCKS I F INC
Primary Class:
52/411
Other Classes:
52/474, 52/483.100, 52/391
International Classes:
E04B2/56