Cushion structure
United States Patent 3308491
US Patent References:
Occipital appliance
- - 1491146
Seat construction
- - 2248413
Pneumatic seat cushion
- - 2627302
Pneumatic structure for mattresses, seat and back cushions, and the like
- - 2691179
Control of inflatable articles
- - 2987735
Occipital appliance
- - 1491146
Seat construction
- - 2248413
Pneumatic seat cushion
- - 2627302
Pneumatic structure for mattresses, seat and back cushions, and the like
- - 2691179
Control of inflatable articles
- - 2987735
Inventors:
Spence, Wayman R.
Publication Date:
03/14/1967
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Export Citation:
Assignee:
STRYKER CORP
Primary Class:
Other Classes:
297/393, 5/630, 5/909, 297/DIG.003, 297/452.260, 297/DIG.001, 601/24, 5/654, 5/653
International Classes:
A47C7/02; A47C7/18; A47C27/14