Masque respiratoire antipoussière, avec filtre place derrière la tête du porteur,申请号FRD881222-传众专利搜索

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发明名称	Masque respiratoire antipoussière, avec filtre place derrière la tête du porteur
摘要
申请公布号	FR881222(A)	申请公布日期	1943.04.19
申请号	FRD881222	申请日期	1942.04.15
申请人	SOCIETA ITALIANA PIRELLI	发明人
分类号	A62B18/02	主分类号	A62B18/02
代理机构		代理人
主权项
地址

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