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发明名称
Пакер сбрасываемого типа
摘要
申请公布号
SU116772(A1)
申请公布日期
1958.11.30
申请号
SU19580594073
申请日期
1958.03.10
申请人
ZAKHARCHUK Z.I.;KONTS I.YA.;POKLONOV I.S.
发明人
ZAKHARCHUK Z.I.;KONTS I.YA.;POKLONOV I.S.
分类号
E21B33/128;E21B33/129
主分类号
E21B33/128
代理机构
代理人
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地址
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