Metallic packing and method of construction,申请号US19220592912-传众专利搜索

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发明名称	Metallic packing and method of construction
摘要
申请公布号	US1750320(A)	申请公布日期	1930.03.11
申请号	US19220592912	申请日期	1922.10.06
申请人	KNIGHT AMERICAN PATENTS COMPANY	发明人	KNIGHT CHARLES Y.
分类号	F16J9/20	主分类号	F16J9/20
代理机构		代理人
主权项
地址

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