TONG,申请号CA19922096124-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	TONG
摘要
申请公布号	CA2096124(A1)	申请公布日期	1992.10.13
申请号	CA19922096124	申请日期	1992.03.23
申请人	WEATHERFORD/LAMB, INC.	发明人	PIETRAS, BERND-GEORG
分类号	E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

您可能感兴趣的专利

TRANSFORMER PROTECTOR AND CONTROLLER

ABNORMAL STATE DETECTION METHOD FOR INDUCTION MOTOR

METHOD OF AND DEVICE FOR ENERGIZING ELECTROMAGNETIC VIBRATOR

PREPARATION OF BIPOLAR MEMBRANE

THICK FILM RESISTOR COMPOSITION

MANUFACTURE OF FROSTED GLASSSLIKE SYNTHETIC RESIN BOTTLE

ELECTRIC CHALK ERASER THAT SUCK CHALK POWDER

STARTUP OF BIIAXIAL STRETCHING FOR PLASTIC TUBE AND ITS APPARATUS

MOTOR BRAILLE TYPEWRITER

MANUFACTURE OF THERMAL PLASTICIZABLE RESIN SHEET

PREPARATION OF SILICAACOATED* ACIDDRESISTANT ULTRAMARINE BLUE PIGMENT

SYNCHRONOUS MOTOR

ROTARY ELECTRIC MACHINE WITH SPEED GENERATOR

LIQUID CRYSTAL COMPOSITION FOR DYNAMIC DRIVING

INORGANIC ADHESIVE FOR METAL ADHESION

PREPARATION OF WATERRINSOLUBLE AZO DYE

PULSE GENERATOR

MATERIAL FOR PRINTED CIRCUIT AND METHOD OF FABRICATING SAME