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发明名称
Adjustable center bar for artist's easel
摘要
申请公布号
US2912203(A)
申请公布日期
1959.11.10
申请号
US19550552317
申请日期
1955.12.12
申请人
TOWNSEND RICHARD L
发明人
TOWNSEND RICHARD L.
分类号
A47B97/04
主分类号
A47B97/04
代理机构
代理人
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地址
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