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经营范围
发明名称
Chain repairing apparatus
摘要
申请公布号
US2121400(A)
申请公布日期
1938.06.21
申请号
US19370147961
申请日期
1937.06.12
申请人
LOUIS HOFFMAN
发明人
HOFFMAN LOUIS
分类号
B25B27/22
主分类号
B25B27/22
代理机构
代理人
主权项
地址
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