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发明名称
CAMERA BACK ADAPTER PLATE
摘要
申请公布号
US3491671(A)
申请公布日期
1970.01.27
申请号
USD3491671
申请日期
1967.01.26
申请人
PHOTO MECHANICS CORP.
发明人
PHILIP J. ENGELDRUM
分类号
G03B17/04;(IPC1-7):G03B19/04
主分类号
G03B17/04
代理机构
代理人
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地址
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