Improvements in joints for sub-soil drainage pipes,申请号GB19370031354-传众专利搜索

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发明名称	Improvements in joints for sub-soil drainage pipes
摘要
申请公布号	GB505608(A)	申请公布日期	1939.05.15
申请号	GB19370031354	申请日期	1937.11.15
申请人	EVANGELOS VOILAS;MICHEL BALADI	发明人
分类号	E02B11/00	主分类号	E02B11/00
代理机构		代理人
主权项
地址

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