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发明名称
Means for checking an internal spiral groove
摘要
申请公布号
US2831259(A)
申请公布日期
1958.04.22
申请号
US19560565512
申请日期
1956.02.14
申请人
KONICK MARVIN M;SEYMOUR SEIDMAN
发明人
KONICK MARVIN M.;SEIDMAN SEYMOUR
分类号
G01B3/48
主分类号
G01B3/48
代理机构
代理人
主权项
地址
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