AUTOMATIC OR SEMI-AUTOMATIC TELEPHONE SYSTEMS OR OTHER TELECOMMUNICATION SYSTEMS INCLUDING POWER DRIVEN SWITCHES,申请号CAD499355-传众专利搜索

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发明名称	AUTOMATIC OR SEMI-AUTOMATIC TELEPHONE SYSTEMS OR OTHER TELECOMMUNICATION SYSTEMS INCLUDING POWER DRIVEN SWITCHES
摘要
申请公布号	CA499355(A)	申请公布日期	1954.01.19
申请号	CAD499355	申请日期
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	MARTINUS DEN HERTOG
分类号		主分类号
代理机构		代理人
主权项
地址

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