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发明名称
Extensible head-rest and control for double movement and two position types of chairs
摘要
申请公布号
US3140117(A)
申请公布日期
1964.07.07
申请号
US19620223582
申请日期
1962.09.11
申请人
ANTON LORENZ
发明人
FLETCHER PETER S.
分类号
A47C1/037
主分类号
A47C1/037
代理机构
代理人
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