Improvements relating to supports for the roof, sides and floor of mines, tunnels and the like,申请号GB19320020385-传众专利搜索

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发明名称	Improvements relating to supports for the roof, sides and floor of mines, tunnels and the like
摘要
申请公布号	GB395877(A)	申请公布日期	1933.07.27
申请号	GB19320020385	申请日期	1932.07.19
申请人	JOHN HISLOP STEWART;WILLIAM REID;ROBERT SCOTLAND;ROBERT LAMB PATERSON BELL	发明人
分类号	E21D11/15	主分类号	E21D11/15
代理机构		代理人
主权项
地址

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SPECCHIO PER IL CONTROLLO DELLA CARIE,DELL'IGIENE ORALE E DELLE PROTESI IN BOCCA CON ILLUMINAZIONE E VENTILAZIONE ANTIAPPANAMENTO.

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