Title:
Adjustable pitching tee
United States Patent 3039770
US Patent References:
/0906392.html
- - 0906392
Practice guide for baseball pitchers
- - 1592005
Baseball practice apparatus
- - 2527906
Revolving target
- - 2580799
Target with projectile stop
- - 2819903
/0906392.html
- - 0906392
Practice guide for baseball pitchers
- - 1592005
Baseball practice apparatus
- - 2527906
Revolving target
- - 2580799
Target with projectile stop
- - 2819903
Inventors:
Ferretti, Arthur T.
Publication Date:
06/19/1962
View Patent Images:
Export Citation:
Assignee:
Ferretti, Arthur T.
Primary Class:
Other Classes:
473/398, 403/229, 273/402
International Classes:
A63B69/00
US Patent References:
| 2873969 | Baseball control developer and tester |
Foreign References:
| GB240652A |