Wave length modulating device,申请号US19470747778-传众专利搜索

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发明名称	Wave length modulating device
摘要
申请公布号	US2497605(A)	申请公布日期	1950.02.14
申请号	US19470747778	申请日期	1947.05.13
申请人	HARTFORD NATIONAL BANK & TRUST COMPANY	发明人	HEPP GERARD
分类号	H03C3/28;H03H2/00;H04R19/00	主分类号	H03C3/28
代理机构		代理人
主权项
地址

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