Closure means for coking retorts,申请号US19320623702-传众专利搜索

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发明名称	Closure means for coking retorts
摘要
申请公布号	US1933729(A)	申请公布日期	1933.11.07
申请号	US19320623702	申请日期	1932.07.21
申请人	LUDWIG KERN	发明人	GOETZ GOTTFRIED
分类号	C10B25/04	主分类号	C10B25/04
代理机构		代理人
主权项
地址

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