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发明名称
Spring
摘要
申请公布号
US2409500(A)
申请公布日期
1946.10.15
申请号
US19430474545
申请日期
1943.02.03
申请人
THE B. F. GOODRICH COMPANY
发明人
KROTZ ALVIN S.
分类号
B60G11/23
主分类号
B60G11/23
代理机构
代理人
主权项
地址
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