公开/公告号US3863989A
专利类型
公开/公告日1975-02-04
原文格式PDF
申请/专利权人 VOITSEKHOVSKY;BOGDAN VYACHESLAVOVICH;NIKOLAEV;VALENTIN PAVLOVICH;SHOIKHET;GRIGORY YANKELEVICH;MITIN;LEONID ALEXEEVICH;DIMOVA;LIDIA PETROVNA;SAMUSENKO;VLADIMIR ALEXEEVICH;
申请/专利号US19720305509
发明设计人 NIKOLAEV;VALENTIN PAVLOVICH;SHOIKHET;GRIGORY YANKELEVICH;VOITSEKHOVSKY;BOGDAN VYACHESLAVOVICH;MITIN;LEONID ALEXEEVICH;SAMUSENKO;VLADIMIR ALEXEEVICH;DIMOVA;LIDIA PETROVNA;
申请日1972-11-10
分类号E21C37/24;
国家 US
入库时间 2022-08-23 03:33:43