Piston ring joint,申请号US19310578995-传众专利搜索

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发明名称	Piston ring joint
摘要
申请公布号	US1984889(A)	申请公布日期	1934.12.18
申请号	US19310578995	申请日期	1931.12.04
申请人	THE WESTINGHOUSE AIR BRAKE COMPANY	发明人	MCCURDY OSCAR S.
分类号	F16J9/14	主分类号	F16J9/14
代理机构		代理人
主权项
地址

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