Automatic telephone apparatus,申请号US19320622749-传众专利搜索

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发明名称	Automatic telephone apparatus
摘要
申请公布号	US1925478(A)	申请公布日期	1933.09.05
申请号	US19320622749	申请日期	1932.07.15
申请人	ALFRED BOYE	发明人	BOYE ALFRED
分类号	H04M1/272	主分类号	H04M1/272
代理机构		代理人
主权项
地址

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