Watchman's tour system,申请号US19430502919-传众专利搜索

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发明名称	Watchman's tour system
摘要
申请公布号	US2347943(A)	申请公布日期	1944.05.02
申请号	US19430502919	申请日期	1943.09.18
申请人	AMERICAN DISTRICT TELEGRAPH COMPANY	发明人	FARMER PAUL M.;BLOSER DWIGHT W.
分类号	G07C1/20	主分类号	G07C1/20
代理机构		代理人
主权项
地址

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