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 and relating to tool tipping
摘要
申请公布号
GB664983(A)
申请公布日期
1952.01.16
申请号
GB19490022061
申请日期
1949.08.24
申请人
BRIAN EXLEY BERRY
发明人
BERRY BRIAN EXLEY
分类号
E21B10/58
主分类号
E21B10/58
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MOTOCICLO
USO DI MATERIA NON SAPONIFICABILE DI OLIO DI SEMI DI VINACCIOLO COME ADDITIVO ANTIOSSIDANTE PER BIODIESEL
QUADRO SCOMPARTO ALIMENTATORE AD ACCESSIBILITA' E MANUTENZIONE SEMPLIFICATE
PADELLA CON VASCHETTA DI RACCOLTA PER LIQUIDI
DISPOSITIVO DI COMANDO PER BARRE PORTA PASSETTE DI MACCHINE TESSILI LINEARI
CASKET WITH COMBINATION HINGE, BRACE AND LOCK
Anordning med syfte att försvåra intrång under stängsel till obehörigt område
LP TURBINE VANE AIRFOIL PROFILE
PUMPING APPARATUS WITH SECURE LOADING FEATURES
MEZZI E METODI ANTILEGIONELLA PER SERBATOI DI ACCUMULO ACQUA IN IMPIANTI SOLARI
POWER CONTROL DEVICE
LIGHT BEAM TRANSMITTING/RECEIVING APPARATUS
OPTICAL TRANSMISSION SYSTEM, DISPERSION COMPENSATION AMOUNT SETTING METHOD THEREOF AND SIMULATION APPARATUS
TRANSMISSION CIRCUIT FOR OPTICAL COMMUNICATION AND OPTICAL COMMUNICATION EQUIPMENT OF PON SYSTEM
OPTICAL PICKUP DEVICE, AND INFORMATION RECORDING AND/OR REPRODUCING DEVICE
OPTICAL REFLECTOR AND OPTICAL INFORMATION RECORDING MEDIUM
IMAGE FORMING APPARATUS
IMAGE FORMING APPARATUS, IMAGE-FORMATION UNIT, AND METHOD FOR ASSEMBLING IMAGE FORMING APPARATUS
A CONVEYOR CHAIN COMPRISING CHAIN LINKS CONNECTED TO ONE ANOTHER VIA PIVOTING BEARINGS, AND A METHOD FOR ASSEMBLING THE CHAIN LINKS
FLOOR CARE APPARATUS WITH A THREE SECTION WAND ASSEMBLY
