PLAY PEN
United States Patent 3474472
US Patent References:
Adjustable scaffold
- - 2806747

Playyard
- - 2908021

Foldable play pen
- - 2991486

Folding playpen
- - 3206773

Folding playpen
- - 3206772


Inventors:
Hamilton, Clarence O.
Publication Date:
10/28/1969
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Assignee:
HAMILTON COSCO INC
Primary Class:
5/98.100
Other Classes:
5/99.100
International Classes:
A47D13/06; A47D13/00; A47D13/06
US Patent References:
3215096Collapsible serving cart
3309718Folding playpen




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