Improvements in or relating to brake sticks,申请号GB19500008785-传众专利搜索

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发明名称	Improvements in or relating to brake sticks
摘要
申请公布号	GB678818(A)	申请公布日期	1952.09.10
申请号	GB19500008785	申请日期	1950.04.11
申请人	ROBERT NELSON HOWORTH	发明人
分类号	B61J3/10	主分类号	B61J3/10
代理机构		代理人
主权项
地址

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