Drilling fluid composition and method,申请号US19550505543-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	Drilling fluid composition and method
摘要
申请公布号	US2858270(A)	申请公布日期	1958.10.28
申请号	US19550505543	申请日期	1955.05.02
申请人	HARRISON WILLIAM M	发明人	HARRISON WILLIAM M.
分类号	C09K8/32	主分类号	C09K8/32
代理机构		代理人
主权项
地址

您可能感兴趣的专利

CONTENITORE ERMETICO ALL'ARIA

PHENYLACETIC ESTER DERIVATIVES

INSPECTING CICUIT OF SELF-INSPECTING PROPERTY

PICTURE PROCESSING DEVICE

DRIVE FOR ELEVATOR

DETECTOR FOR POSITION OF ELEVATOR

ANNUNCIATOR FOR POSITION OF ELEVATOR

PREPARATION OF 1,4-DIHYDROANTHRAHYDROQUINONE OR ANTHRAQUINONE

PREPARATION OF FLUORINE-SUBSTITUTED AROMATIC CARBOXYLIC ACID

PREPARATION OF 4-HYDROXY-2,4,6-TRIMETHYL-2,5-CYCLOHEXADIEN- 1-ONE

SELF-DIAGNOSING DEVICE

SIGNAL GENERATOR

CONSTANT CURRENT SOURCE FOR FIELD CONTACT INPUT

OPERATING POSITION DISPLAY DEVICE OF EACH CONTROLLED SYSTEM IN SEQUENCE CONTROL SYSTEM

VAGINAL LUBRICANT

PROGRAM SEARCHING DEVICE OF SOUND SIGNAL RECORDING AND REPRODUCING DEVICE OF LANGUAGE LEARNING OR MUSIC AND THE LIKE

METHOD OF DISTRIBUTING RECORDED MATERIAL

SHEET FEED DEVICE OF COPYING MACHINE

COATING RESIN COMPOSITION