Insulation
United States Patent 2335968

Inventors:
Sawtell, Richard B.
Publication Date:
12/07/1943
View Patent Images:
Download PDF 2335968 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
PAPER PATENTS CO
Primary Class:
52/742.120
Other Classes:
52/407.300
International Classes:
E04B1/76