PORTABLE COLLAPSIBLE CHILD'S PLAY ENCLOSURE
United States Patent 3550601
Inventors:
Peters, Donald F.
Publication Date:
12/29/1970
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Assignee:
Donald, Peters F.
Primary Class:
Other Classes:
D25/18, D25/56, 135/135, 52/71, D25/16
International Classes:
E04B1/344; E04H15/48; E04H15/34; E04F10/04; A45F1/16