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发明名称
Ring gauge
摘要
申请公布号
US2413566(A)
申请公布日期
1946.12.31
申请号
US19440562058
申请日期
1944.11.06
申请人
N. A. WOODWORTH COMPANY
发明人
HOHWART ERNEST F.;HOHWART GEORGE
分类号
G01B3/34
主分类号
G01B3/34
代理机构
代理人
主权项
地址
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