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发明名称
Adjustable mill nut
摘要
申请公布号
US1830922(A)
申请公布日期
1931.11.10
申请号
US19310535793
申请日期
1931.05.07
申请人
ERNEST BLASBERG
发明人
BLASBERG ERNEST
分类号
B65H57/20
主分类号
B65H57/20
代理机构
代理人
主权项
地址
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