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经营范围
发明名称
Grinding machine
摘要
申请公布号
US1818288(A)
申请公布日期
1931.08.11
申请号
US19280319614
申请日期
1928.11.15
申请人
JOHN BATH
发明人
WALKER ERNEST A.
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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