Portable support apparatus
United States Patent 2986437
US Patent References:
/1068593.html
- - 1068593

Telephone-shelf
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Attachment for filing-cabinets
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Tray or table attachment
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Portable writing shelf
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Inventors:
Davis, Halford G.
Publication Date:
05/30/1961
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Assignee:
Davis, Halford G.
Primary Class:
108/157.130
Other Classes:
297/423.400, D06/501
International Classes:
A47C16/02; A47C16/00
US Patent References:
2647716Chair tray with furniture arm engaging bracket
2797973Chair tray having pivoted, spring biased, arm-engaging clamps
2867401Adjustable chair arm gripping tray holder
2871928Arm rest