CASING FOR STEPPED CEMENTATION OF CASING STRINGS,申请号SU19884462380-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	CASING FOR STEPPED CEMENTATION OF CASING STRINGS
摘要
申请公布号	SU1569401(A1)	申请公布日期	1990.06.07
申请号	SU19884462380	申请日期	1988.07.18
申请人	UFIMSKIJ NEFTYANOJ INSTITUT	发明人	PETROV NIKOLAJ A,SU;AGZAMOV FARIT A,SU;LEVINSON LEV M,SU
分类号	E21B33/14	主分类号	E21B33/14
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Display stand for coins comprises picture frame deep enough to take coins, which fit into recesses designed to receive them.

Lashing system for lorry cargoes comprises double-walled aluminum sheet cladding for cargo space which has troughs at its center with vertical bars fixed across them from their top to their bottom wall

Hydraulic cylinder esp. for mine prop in mining operations has seal arrangement with guide ring with open lubricant grooves connected to lubricant supply line on outside of cylinder

Semi-trailer for transportation of short or long materials can be extended telescopically or divided into gooseneck and axle group sections

Universal-joint shaft with articulated arms for torque transmission has spatial joint with vertical shaft formed as sliding joint to compensate for axial displacement of joint shaft sections

Arrangement for plasma welding and/or plasma cutting has nozzle opening with high temperature resistant surface with electrical conducting properties at least near plasma jet outlet

Verfahren und Vorrichtung zur Archivierung und Übertragung von Bilddaten

Sport canoe has a fixed and rigid center hull section, with bow and stern sections which can be dismantled and folded for transport

Filtermodul für eine Kraftstofffördereinheit und Kraftstofffördereinheit für ein Kraftfahrzeug

Photo dispatch wallet is printed on photo paper gives customer specific information

Security sleeve for connections between pipes in gas or liquid pipelines consists of two halves with centering rings which fit into grooves in sleeve and fix it on pipes, collar on one side of sleeve acting as hinge and being locked by key

Verfahren und Vorrichtung zur Erzeugung von stabilisierten ultrakurzen Laser-Lichtpulsen

Vorrichtung und Verfahren zum Beladen eines Aufbewahrungsmittels für lichtempfindliches Aufzeichnungsmaterial

Vorrichtung und Verfahren zum Verarbeiten von lichtempfindlichem Aufzeichnungsmaterial

Verfahren und Vorrichtung zur Behandlung von Gegenständen, besonders Leiterplatten

Waste bin with hinged base plate to allow emptying has guide plates at side of lock which guide front of flap into position before hook engages with slot in it

Housing for electronic or electrical device has different parts of entire surface selectively activated for acting as display devices and/or operating surfaces

Ball screw has for separation and guidance of ball bodies, ball cages provided, every two ball bodies being surrounded by separate ball cage

System for assisting with dental cleaning provides visual or audible information based on data stored in memory

Behälter für ein Reinigungsfahrzeug