| 发明名称 |
Free play apparatus for coin operated amusement devices |
| 摘要 |
Apparatus is disclosed which automatically times non-play time for coin operated amusement devices and provides a predetermined period when the device may be actuated to provide a free play.
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| 申请公布号 |
US4091437(A) |
申请公布日期 |
1978.05.23 |
| 申请号 |
US19760731727 |
申请日期 |
1976.10.12 |
| 申请人 |
SOROKA, WALTER |
发明人 |
SOROKA, WALTER |
| 分类号 |
G07F17/32;(IPC1-7):H01H47/00 |
主分类号 |
G07F17/32 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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