Gas pressure alarm system for cables,申请号US19310543232-传众专利搜索

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发明名称	Gas pressure alarm system for cables
摘要
申请公布号	US1904227(A)	申请公布日期	1933.04.18
申请号	US19310543232	申请日期	1931.06.09
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	HENNEBERGER THOMAS C.
分类号	G01M3/18;G01M3/28	主分类号	G01M3/18
代理机构		代理人
主权项
地址

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