Hospital bed
United States Patent 3309717
US Patent References:
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Inventors:
Black, Warren R.
Publication Date:
03/21/1967
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Assignee:
AMERICAN SEATING CO
Primary Class:
5/618
Other Classes:
5/183, 5/178
International Classes:
A61G7/015; A61G7/002
US Patent References:
2620492Bed construction
3010121Adjustable support device
3089150Adjustable bed and control apparatus
Foreign References:
FR677170A
GB188603788A