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经营范围
发明名称
Hydraulic shock absorber
摘要
申请公布号
US1957997(A)
申请公布日期
1934.05.08
申请号
US19290381512
申请日期
1929.07.27
申请人
N. A. PETRY COMPANY, INC.
发明人
FIELDMAN MICHAEL
分类号
F16F9/14
主分类号
F16F9/14
代理机构
代理人
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地址
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