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发明名称
Adjustable headrest
摘要
申请公布号
US1917587(A)
申请公布日期
1933.07.11
申请号
US19310570410
申请日期
1931.10.22
申请人
JACOBSEN CHRISTIAN M
发明人
JACOBSEN CHRISTIAN M.
分类号
A61G17/04
主分类号
A61G17/04
代理机构
代理人
主权项
地址
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