Improvements in or relating to internal shoe-drum brakes for vehicles,申请号GB19490000305-传众专利搜索

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发明名称	Improvements in or relating to internal shoe-drum brakes for vehicles
摘要
申请公布号	GB671345(A)	申请公布日期	1952.04.30
申请号	GB19490000305	申请日期	1949.01.05
申请人	ROY ROBERT BIRCHFIELD	发明人
分类号	F16D51/14;F16D65/14;F16D65/22	主分类号	F16D51/14
代理机构		代理人
主权项
地址

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