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发明名称
Brake drum
摘要
申请公布号
US1927305(A)
申请公布日期
1933.09.19
申请号
US19310538101
申请日期
1931.05.18
申请人
CAMPBELL DONALD J
发明人
CAMPBELL DONALD J.
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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