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发明名称
DISPOSITIVO DI TENUTA PERL'ESTREMITA' SUPERIORE DI UN TUBO MONTANTE RISPETTIVAMENTE DI UN CONDOTTO CONVOGLIATORE,IN PARTICOLAREPER CONVOGLIARE MEZZI ALTAMENTE TOSSICI E CORROSIVI.
摘要
申请公布号
IT1217066(B)
申请公布日期
1990.03.14
申请号
IT19870009393
申请日期
1987.05.14
申请人
OMV AKTIENGESELLSCHAFT
发明人
KROPATSCH WOLFGANG
分类号
E21B33/00;E21B33/047;F16J15/08;(IPC1-7):F16L/
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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