Specific gravity indicator,申请号GB19450000731-传众专利搜索

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发明名称	Specific gravity indicator
摘要
申请公布号	GB615518(A)	申请公布日期	1949.01.07
申请号	GB19450000731	申请日期	1945.01.09
申请人	KERMIT FISCHER	发明人
分类号	G01N9/34	主分类号	G01N9/34
代理机构		代理人
主权项
地址

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