Vacuum plant located in pre-vacuum tank,申请号US19520264997-传众专利搜索

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发明名称	Vacuum plant located in pre-vacuum tank
摘要
申请公布号	US2772047(A)	申请公布日期	1956.11.27
申请号	US19520264997	申请日期	1952.01.04
申请人	CARL ZEISS	发明人	SONNBERGER HEINRICH
分类号	F04F9/04	主分类号	F04F9/04
代理机构		代理人
主权项
地址

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