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经营范围
发明名称
Perfectionnement aux filtres de cafetières
摘要
申请公布号
FR706442(A)
申请公布日期
1931.06.24
申请号
FRD706442
申请日期
1930.11.18
申请人
发明人
MAILLEFERT EMILE-EUGENE
分类号
A47J31/06
主分类号
A47J31/06
代理机构
代理人
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