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发明名称
Control for posture chairs
摘要
申请公布号
US2778409(A)
申请公布日期
1957.01.22
申请号
US19550504476
申请日期
1955.04.28
申请人
H. MANTON AHLBERG;SIEGFRIED J. ULLMANN
发明人
SODERBERG GUSTAF A.
分类号
A47C3/026
主分类号
A47C3/026
代理机构
代理人
主权项
地址
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