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经营范围
发明名称
Threading apparatus
摘要
申请公布号
US2397463(A)
申请公布日期
1946.04.02
申请号
US19430491636
申请日期
1943.06.21
申请人
THE SHEFFIELD CORPORATION
发明人
BOECK MAX FRED;RAUSCH HARRY L.
分类号
B24B19/02
主分类号
B24B19/02
代理机构
代理人
主权项
地址
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