Communication device for jails,申请号US19320585576-传众专利搜索

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发明名称	Communication device for jails
摘要
申请公布号	US1869266(A)	申请公布日期	1932.07.26
申请号	US19320585576	申请日期	1932.01.08
申请人	MANLY JAIL WORKS	发明人	MANLY HOWARD P.
分类号	E06B7/30	主分类号	E06B7/30
代理机构		代理人
主权项
地址

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