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经营范围
发明名称
Conical spiral spring
摘要
申请公布号
US1892339(A)
申请公布日期
1932.12.27
申请号
US19280297209
申请日期
1928.08.03
申请人
FRIED KRUPP AKTIENGESELLSCHAFT
发明人
GROSS SIEGFRIED
分类号
F16F1/08
主分类号
F16F1/08
代理机构
代理人
主权项
地址
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