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发明名称
Optical apparatus for comparing objects
摘要
申请公布号
US2427256(A)
申请公布日期
1947.09.09
申请号
US19420457988
申请日期
1942.09.11
申请人
MASCHINENFABRIK H. HAUSER A.-G.
发明人
BUTSCHER KARL
分类号
G02B21/00
主分类号
G02B21/00
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