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经营范围
发明名称
Adjustable support for manuscripts, books, or the like
摘要
申请公布号
US2331595(A)
申请公布日期
1943.10.12
申请号
US19410405426
申请日期
1941.08.04
申请人
BUSH PAINE L
发明人
BUSH PAINE L.
分类号
A47B23/04
主分类号
A47B23/04
代理机构
代理人
主权项
地址
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