Title:
Portable and collapsible pole vaulting and high jumping pit
United States Patent 2588722
US Patent References:
/0799390.html
- - 0799390

/0933971.html
- - 0933971

/1220015.html
- - 1220015

Tumbling device
- - 2370990


Inventors:
Hendershott, Robert W.
Publication Date:
03/11/1952
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Assignee:
Hendershott, Robert W.
Primary Class:
482/15
Other Classes:
5/110, D21/800, 56/329
International Classes:
A63B6/02; A63B6/00