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发明名称
EXPANDABLE DIAPHRAGM
摘要
申请公布号
US3449042(A)
申请公布日期
1969.06.10
申请号
USD3449042
申请日期
1966.09.23
申请人
PERKIN ELMER CORP.:THE
发明人
DAVID R. AUERBACH
分类号
G03B9/07;(IPC1-7):G03B9/02;G02F1/30
主分类号
G03B9/07
代理机构
代理人
主权项
地址
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