United States Patent 2609199
Inventors:
Koener, Ralph F.
Publication Date:
09/02/1952
Assignee:
Koener, Ralph F.
Other Classes:
273/125A, 340/323R, 473/152, 221/258, 473/163
International Classes:
A63B57/00
US Patent References:
| 2259916 | Golf practice putting device | | | |
| 2295599 | Automatic golf ball teeing device | | | |
| 2530698 | Golf ball teeing machine | | | |