United States Patent 3281071
Inventors:
Curran, William F.
Publication Date:
10/25/1966
Assignee:
Curran, William F.
Other Classes:
116/225, 273/148R, 235/1B, 235/1R
International Classes:
A63B71/06; A63F1/18; A63F1/00
US Patent References:
| 1859750 | Indicating device | | | |
| 2058614 | Bridge scorekeeper | | | |
| 2097835 | Fuel oil delivery control indicator | | | |
| 2135649 | Scoring apparatus | | | |
| 2171602 | Apparatus for giving information concerning stocks and bonds | | | |
| 2488338 | Instrument for the presentation of quantitative data in visual graphic form | | | |