United States Patent 3233895
Inventors:
Grelle, Albert C.
Rauschenberger, John K.
Publication Date:
02/08/1966
Assignee:
Grelle, Albert C.
Rauschenberger, John K.
International Classes:
A63B5/11; A63B5/00
US Patent References:
| 3004623 | Bounding bed | | | |
| 3050746 | Protective pad and method of forming the same | | | |