Perfectionnements aux couvertures étanches et similaires.,申请号BE19590581771-传众专利搜索

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发明名称	Perfectionnements aux couvertures étanches et similaires.
摘要
申请公布号	BE581771(A7)	申请公布日期	1960.12.16
申请号	BE19590581771	申请日期	1959.08.18
申请人	IDA VIOLET DAWSON	发明人	IDA VIOLET DAWSON
分类号	A01F25/13;E04D13/17;(IPC1-7):E04D	主分类号	A01F25/13
代理机构		代理人
主权项
地址

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