An improved method and means for controlling an electrical circuit by light,申请号GB19320001803-传众专利搜索

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发明名称	An improved method and means for controlling an electrical circuit by light
摘要
申请公布号	GB395422(A)	申请公布日期	1933.07.20
申请号	GB19320001803	申请日期	1932.01.20
申请人	PETER ST. JOHN HEATON	发明人
分类号	H05B39/04	主分类号	H05B39/04
代理机构		代理人
主权项
地址

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