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Pneumatic seat
United States Patent 2216818
Inventors:
Kuhlman, Henry H.
Publication Date:
10/08/1940
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Download PDF 2216818
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Assignee:
Kuhlman, Henry H.
Primary Class:
5/654
Other Classes:
4/578.100, 297/DIG.003, 297/461
International Classes:
A47C27/08