Means for compensating for temperature changes in piezo-electric crystal devices,申请号US19330681469-传众专利搜索

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发明名称	Means for compensating for temperature changes in piezo-electric crystal devices
摘要
申请公布号	US2001217(A)	申请公布日期	1935.05.14
申请号	US19330681469	申请日期	1933.07.21
申请人	RADIO CORPORATION OF AMERICA	发明人	SCOFIELD THEODORE J.
分类号	H03H3/04;H03H9/09	主分类号	H03H3/04
代理机构		代理人
主权项
地址

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