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发明名称
ELECTRICALLY OPERATED SHUTTER
摘要
申请公布号
CA910698(A)
申请公布日期
1972.09.26
申请号
CAD910698
申请日期
申请人
TEKTRONIX
发明人
IVAR SAUL
分类号
G03B9/22;G03B9/24;G03B9/58;(IPC1-7):G03B9/22
主分类号
G03B9/22
代理机构
代理人
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地址
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