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发明名称
Internal expansion brake
摘要
申请公布号
US1963969(A)
申请公布日期
1934.06.26
申请号
US19320605457
申请日期
1932.04.15
申请人
BURNETT CHARLES S
发明人
BURNETT CHARLES S.
分类号
F16D51/50
主分类号
F16D51/50
代理机构
代理人
主权项
地址
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