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经营范围
发明名称
Friction spring shock absorber
摘要
申请公布号
US2753177(A)
申请公布日期
1956.07.03
申请号
US19530349990
申请日期
1953.04.20
申请人
BOYD WILLIAM H A
发明人
BOYD WILLIAM H. A.
分类号
F16F7/08
主分类号
F16F7/08
代理机构
代理人
主权项
地址
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