VENTILATION OF UNDERGROUND DISTRIBUTION VAULT,申请号CAD809298-传众专利搜索

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发明名称	VENTILATION OF UNDERGROUND DISTRIBUTION VAULT
摘要
申请公布号	CA809298(A)	申请公布日期	1969.03.25
申请号	CAD809298	申请日期
申请人	LACAL INDUSTRIES LIMITED	发明人	HERBERT D. SHORT
分类号		主分类号
代理机构		代理人
主权项
地址

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