Railway braking apparatus,申请号US19400348592-传众专利搜索

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发明名称	Railway braking apparatus
摘要
申请公布号	US2263244(A)	申请公布日期	1941.11.18
申请号	US19400348592	申请日期	1940.07.30
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	MCGOWAN KENNETH J. J.;BONE HERBERT L.
分类号	B61K7/04	主分类号	B61K7/04
代理机构		代理人
主权项
地址

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