发明名称 |
Motorized film take-up canister |
摘要 |
A motor drive arrangement for an exposed film take-up canister spool that permits a continuous take-up tension on the spool and yet permitting partial withdrawal of exposed film from the canister for additional exposure without interruption or reversal of the take-up drive.
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申请公布号 |
US4116400(A) |
申请公布日期 |
1978.09.26 |
申请号 |
US19770801222 |
申请日期 |
1977.05.27 |
申请人 |
LOCKHEED CORPORATION |
发明人 |
JONES, LAMAR J.;WILLIAMS, CARL W. |
分类号 |
B41B21/32;B65H18/10;(IPC1-7):B65H17/02;G03B17/26 |
主分类号 |
B41B21/32 |
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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