发明名称 |
PHOTOGRAPHIC DEVELOPING MACHINE AUTOMATIC CUTOFF |
摘要 |
In a machine for processing photographic film, a main switch in the main power supply to the machine is normally held in the closed position so that the machine runs. A timing circuit is reset each time film is fed into the machine. At a set time after the last film is fed into the machine, an electromagnetic solenoid opens the main switch to automatically cut off the machine.
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申请公布号 |
US3647124(A) |
申请公布日期 |
1972.03.07 |
申请号 |
USD3647124 |
申请日期 |
1969.12.29 |
申请人 |
SWAIN RODGERS;LIVER V. SPICER |
发明人 |
OLIVER V. SPICER |
分类号 |
G03D13/00;(IPC1-7):B65H25/32 |
主分类号 |
G03D13/00 |
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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