Finger dial for dial telephones,申请号US19540413835-传众专利搜索

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发明名称	Finger dial for dial telephones
摘要
申请公布号	US2777228(A)	申请公布日期	1957.01.15
申请号	US19540413835	申请日期	1954.03.03
申请人	ANDREWS MALCOLM C	发明人	ANDREWS MALCOLM C.
分类号	H04M1/22	主分类号	H04M1/22
代理机构		代理人
主权项
地址

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