Folding platform and blackboard,申请号US19290337387-传众专利搜索

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发明名称	Folding platform and blackboard
摘要
申请公布号	US1912096(A)	申请公布日期	1933.05.30
申请号	US19290337387	申请日期	1929.02.04
申请人	REUTER HANS C	发明人	REUTER HANS C.
分类号	A47B97/04	主分类号	A47B97/04
代理机构		代理人
主权项
地址

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