Evacuating a mass of powdery insulation,申请号US19550519935-传众专利搜索

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发明名称	Evacuating a mass of powdery insulation
摘要
申请公布号	US2863584(A)	申请公布日期	1958.12.09
申请号	US19550519935	申请日期	1955.07.05
申请人	ARTHUR D. LITTLE, INC.	发明人	JR. ALLEN LATHAM,
分类号	F17C13/00	主分类号	F17C13/00
代理机构		代理人
主权项
地址

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