System of manually operated indicators,申请号US19390298803-传众专利搜索

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发明名称	System of manually operated indicators
摘要
申请公布号	US2236132(A)	申请公布日期	1941.03.25
申请号	US19390298803	申请日期	1939.10.10
申请人	BRAIDWOOD CHESTER A	发明人	BRAIDWOOD CHESTER A.
分类号	G09F9/37	主分类号	G09F9/37
代理机构		代理人
主权项
地址

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