首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Improvements in or relating to earth and rock drilling bits
摘要
申请公布号
GB932205(A)
申请公布日期
1963.07.24
申请号
GB19590029431
申请日期
1959.08.28
申请人
PADLEY & VENABLES LIMITED
发明人
WARBURTON BRUCE PERCIVAL
分类号
E21B10/20
主分类号
E21B10/20
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Schweißbacken (Spannsystem) für geschlossene WIG-Orbitalschweißköpfe mit integriertem Hitzeschild und Führungssystem für das obere Backenpaar und einer aktiven Gaskühlung
METHOD FOR ACTIVATING USERS, METHOD FOR AUTHENTICATING USERS, METHOD FOR CONTROLLING USER TRAFFIC, METHOD FOR CONTROLLING USER ACCESS ON A 3G-TRAFFIC REROUTING WI-FI NETWORK AND SYSTEM FOR REROUTING 3G TRAFFIC.
MEDICAL INSERTING APPARATUS
MEDICAL INSERTING APPARATUS
LENS AND LIGHT EMITTING MODULE FOR SURFACE ILLUMINATION
FORMA CRISTALINA A DE 1,5-DIMETIL-6-TIOXO-3- (2,2,7-TRIFLUORO- 3-OXO-4- (PROP-2-INIL)-3,4-DIHIDRO -2H-BENZO [B] [1,4] OXAZIN-6-IL)-1,3,5- TRIAZINAN-2,4-DIONA
PROCESS FOR ZINC OXIDE PRODUCTION FROM ORE.
FUNGICIDAL HETEROCYCLIC CARBOXAMIDES.
NOVEL ADAMANTYL DERIVATIVES AS CANNABINOID RECEPTOR 2 AGONISTS.
A REFRACTOMETER WITH A REMOTE WAVEFRONT GENERATOR.
A METHOD AND A SYSTEM FOR DISPLAYING PRODUCT INFORMATION ON ELECTRONIC LABELS.
COVER INCLUDING GLASS AND ELECTRONIC DEVICE USING THE SAME
THE HYDRAULIC JACK GUIDE EQUIPMENT FOR PURE JIG CONNECTION
APPARATUS FOR LIGHTING DIRECTION WITH ROTARY TYPE
EASY TIE DEVICE FOR SHOESTRINGS
BOTH SIDES SUBSTRATE NANOFIBER FILTER FOR EXCELLENT HEAT-RESISTING PROPERTY AND ITS MANUFACTURING METHOD
METHODE OF FORCASTING FOR CASTING STRUCTURE ON THE CAST SPECIMEN OF LOW CARBON STEEL
METHOD FOR MANUFACTURING TITANIUM ALLOY USING WASTE TITANIUM
FOOTWEAR OF ARTIFICIAL LEG
FAN FILTER UNIT TO THE SUBSTRATE, THE SUBSTRATE FEED FEED
