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发明名称
FAST-ACTING TUBULAR SHUTTER
摘要
申请公布号
US3581646(A)
申请公布日期
1971.06.01
申请号
USD3581646
申请日期
1968.07.12
申请人
TECHNICAL OPERATIONS INC.
发明人
ALLAN M. SAUNDERS;RONALD J. FLEMING
分类号
G03B9/08;(IPC1-7):G03B9/08
主分类号
G03B9/08
代理机构
代理人
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