Inner spring support
United States Patent 2345438

Inventors:
Tompkins, Edwin H.
Publication Date:
03/28/1944
View Patent Images:
Download PDF 2345438 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Tompkins, Edwin H.
Primary Class:
601/57
Other Classes:
310/91, 310/81, 310/86, 5/720
International Classes:
A47C21/00; A61H1/00; A61H23/02