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经营范围
发明名称
Internal keyway grinder
摘要
申请公布号
US2319582(A)
申请公布日期
1943.05.18
申请号
US19410401316
申请日期
1941.07.07
申请人
CARROLL GUY B
发明人
CARROLL GUY B.
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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