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发明名称	Bookholder
摘要
申请公布号	US3255989(A)	申请公布日期	1966.06.14
申请号	US19640408528	申请日期	1964.11.03
申请人	RISK LARRY C	发明人	RISK LARRY C.
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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