Vibrationsunterstützung für Spülbohranlagen in aktiver und passiver Arbeitsweise,申请号DE19972001851U-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	Vibrationsunterstützung für Spülbohranlagen in aktiver und passiver Arbeitsweise
摘要
申请公布号	DE29701851(U1)	申请公布日期	1997.04.30
申请号	DE19972001851U	申请日期	1997.02.04
申请人	OLTMANNS, HANS, 26441 JEVER, DE	发明人
分类号	E21B7/20;(IPC1-7):E21B7/20;E21B7/26	主分类号	E21B7/20
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Crustacean claw-processing machine

Random access memory system providing high-speed digital data output

MIS readout device with dielectric storage medium

Camera having improved mechanism for shutter actuation and film winding

System for indicating photographing conditions

Method for determining elastic constants of geological formations

Automatic range selection circuit

Broad-band continuously variable attenuator

Q-switched laser and laser rod

Driver for reactive load

Magnetic tape reproducer with series interconnected torque motors in play mode

Data transferring system with priority control and common bus

Hazardous voltage protector for telephone line

Method and apparatus for producing a vertical center line and horizontal synchronization signals for television type game machine

Optical object locator

Penetration phosphors for display devices

Auxiliary cooling device

Process for preparing fibrils for use in the manufacture of paper

Laser method of introducing mercury to gas discharge display panels

STORAGE STABLE WATER-DILUTABLE EPOXY BASED COATING FOR METAL FOOD CONTACT SURFACES