Method of producing carbon granules,申请号US19270243011-传众专利搜索

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发明名称	Method of producing carbon granules
摘要
申请公布号	US1827931(A)	申请公布日期	1931.10.20
申请号	US19270243011	申请日期	1927.12.28
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人	BLANKENSTEIN EDWARD EVANS
分类号	H04R21/00	主分类号	H04R21/00
代理机构		代理人
主权项
地址

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