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经营范围
发明名称
Valve seat ring driver
摘要
申请公布号
US1905879(A)
申请公布日期
1933.04.25
申请号
US19310579433
申请日期
1931.12.07
申请人
ALBERTSON & COMPANY, INC.
发明人
ALBERTSON FRANS O.
分类号
B25B27/02;B25B27/06
主分类号
B25B27/02
代理机构
代理人
主权项
地址
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