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经营范围
发明名称
Back and head rest
摘要
申请公布号
US2813577(A)
申请公布日期
1957.11.19
申请号
US19550526988
申请日期
1955.08.08
申请人
WEEKLY WILLIS B
发明人
WEEKLY WILLIS B.
分类号
B60N2/48;B60N2/70
主分类号
B60N2/48
代理机构
代理人
主权项
地址
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