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发明名称
Composite brake drum structure
摘要
申请公布号
US1989465(A)
申请公布日期
1935.01.29
申请号
US19310541602
申请日期
1931.06.02
申请人
DURAFER (INC.)
发明人
SARGENT WILLIAM D.
分类号
F16D65/10
主分类号
F16D65/10
代理机构
代理人
主权项
地址
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