Piston and packing,申请号US19410397057-传众专利搜索

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发明名称	Piston and packing
摘要
申请公布号	US2339949(A)	申请公布日期	1944.01.25
申请号	US19410397057	申请日期	1941.06.07
申请人	HUNT-SPILLER MANUFACTURING CORPORATION	发明人	JR. ALBERT B. ROOT,
分类号	F16J9/06	主分类号	F16J9/06
代理机构		代理人
主权项
地址

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