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发明名称
Method of manufacturing brake hangers
摘要
申请公布号
US1913171(A)
申请公布日期
1933.06.06
申请号
US19300435266
申请日期
1930.03.12
申请人
FREDERIC SCHAEFER
发明人
SCHAEFER FREDERIC
分类号
B21K7/00
主分类号
B21K7/00
代理机构
代理人
主权项
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