Münzfernsprecher für den Passivverkehr.,申请号ATD121905-传众专利搜索

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发明名称	Münzfernsprecher für den Passivverkehr.
摘要
申请公布号	AT121905(B)	申请公布日期	1931.03.25
申请号	ATD121905	申请日期	1929.11.16
申请人	"ELIN" NEDERLANDSCHE MAATSCHAPPIJ VOOR ELECTR. INDUSTRIE	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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