Purging of hydrocarbon-containing chambers,申请号US19430475321-传众专利搜索

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发明名称	Purging of hydrocarbon-containing chambers
摘要
申请公布号	US2497946(A)	申请公布日期	1950.02.21
申请号	US19430475321	申请日期	1943.02.09
申请人	DRAVO CORPORATION	发明人	LESTER HARRY H.
分类号	B63B57/04	主分类号	B63B57/04
代理机构		代理人
主权项
地址

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