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发明名称
Improvements in or relating to venturi injector devices
摘要
申请公布号
GB741973(A)
申请公布日期
1955.12.14
申请号
GB19530028676
申请日期
1953.10.16
申请人
PAPETERIES DE FRANCE
发明人
分类号
B01J4/00;B65G53/08;D21C7/06;D21C7/08
主分类号
B01J4/00
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