Traylike rebound unit
United States Patent 3347546
US Patent References:
/0428603.html
- - 0428603

/1270780.html
- - 1270780

Knee rest
- - 1409746

Trampolines
- - 3233895


Inventors:
Rippen, Abberly Nicholas
Publication Date:
10/17/1967
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Assignee:
Rippen, Abberly Nicholas
Primary Class:
482/27
Other Classes:
5/233, 182/139
International Classes:
A63B5/11; A63B5/00
Foreign References:
DE102905C
DE334258C