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发明名称
DRUCKAUSGEGLICHENES TORSIONSSYSTEM FÜR RÜCKENLEHNEN UND ÄHNLICHES
摘要
申请公布号
DE69219578(D1)
申请公布日期
1997.06.12
申请号
DE19926019578
申请日期
1992.07.23
申请人
ZHANG, YUN HUI, RICHMOND HILL, ONTARIO, CA
发明人
ZHANG, YUN HUI, RICHMOND HILL, ONTARIO, CA
分类号
A47C7/34;A47C7/24;A47C23/00;(IPC1-7):A47C7/24
主分类号
A47C7/34
代理机构
代理人
主权项
地址
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