Adjustable illuminating device for hydrometers,申请号US19330693180-传众专利搜索

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发明名称	Adjustable illuminating device for hydrometers
摘要
申请公布号	US1973140(A)	申请公布日期	1934.09.11
申请号	US19330693180	申请日期	1933.10.11
申请人	RICHARD CARLSON GOSTA	发明人	CARLSON GOSTA RICHARD
分类号	F21V33/00;G01N9/14	主分类号	F21V33/00
代理机构		代理人
主权项
地址

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