United States Patent 3201895
Inventors:
Stivers, Norman J.
Publication Date:
08/24/1965
Assignee:
Stivers, Norman J.
Other Classes:
29/525, 403/290, 403/225
International Classes:
A63H1/30; A63H1/00
US Patent References:
| 3038194 | Hollow stem connector and support | | | |