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发明名称
SPRING UNIT
摘要
申请公布号
US3497200(A)
申请公布日期
1970.02.24
申请号
USD3497200
申请日期
1967.08.30
申请人
HOOVER BALL & BEARING CO.
发明人
NEVILLE L. RIDDLE;ALBIN J. NIEWULIS
分类号
A47C7/30;A47C7/40;(IPC1-7):F16F1/14;F16F3/02
主分类号
A47C7/30
代理机构
代理人
主权项
地址
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