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发明名称
Self-supporting lens holders
摘要
申请公布号
US2850943(A)
申请公布日期
1958.09.09
申请号
US19540425440
申请日期
1954.04.26
申请人
GRINEFF GEORGE G
发明人
GRINEFF GEORGE G.
分类号
G01B3/20
主分类号
G01B3/20
代理机构
代理人
主权项
地址
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