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经营范围
发明名称
Stud bolt retractor and drive
摘要
申请公布号
US2391624(A)
申请公布日期
1945.12.25
申请号
US19430505339
申请日期
1943.10.07
申请人
ERNEST HEUER
发明人
HEUER ERNEST
分类号
B25B23/10
主分类号
B25B23/10
代理机构
代理人
主权项
地址
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