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经营范围
发明名称
Optical attenuator
摘要
申请公布号
US3195405(A)
申请公布日期
1965.07.20
申请号
US19620243089
申请日期
1962.12.07
申请人
THOMPSON RAMO WOOLDRIDGE INC.
发明人
CLARK GEORGE L.;PRENDERGAST FRANK L.
分类号
G03B39/00
主分类号
G03B39/00
代理机构
代理人
主权项
地址
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