Acoustic lining or wall covering for rooms,申请号US19330666578-传众专利搜索

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发明名称	Acoustic lining or wall covering for rooms
摘要
申请公布号	US2020430(A)	申请公布日期	1935.11.12
申请号	US19330666578	申请日期	1933.04.17
申请人	JULIUS OEHRLEIN, INC.	发明人	OED JULIUS
分类号	E04B1/84;E04B1/99	主分类号	E04B1/84
代理机构		代理人
主权项
地址

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