Title:
Adjustable pneumatic support
United States Patent 3192540
Inventors:
Swank, Richard E.
Publication Date:
07/06/1965
Assignee:
Swank, Richard E.
Other Classes:
137/223, 297/282, 244/122R, 5/1, 297/284.100, 5/654
International Classes:
A47C27/10