Improvements in scraper conveyors,申请号GB19490012779-传众专利搜索

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发明名称	Improvements in scraper conveyors
摘要
申请公布号	GB665661(A)	申请公布日期	1952.01.30
申请号	GB19490012779	申请日期	1949.05.13
申请人	HOUILLERES DU BASSIN DU NORD ET DU PAS-DE-CALAIS	发明人
分类号	B65G19/28	主分类号	B65G19/28
代理机构		代理人
主权项
地址

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