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
CORING APPARATUS
摘要
申请公布号
GB8825941(D0)
申请公布日期
1988.12.14
申请号
GB19880025941
申请日期
1988.11.05
申请人
CORPRO SYSTEMS LTD
发明人
分类号
E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
GROUP CONTROLLER FOR ELEVATOR
RECORDING MEDIUM
OPENING INDICATOR FOR INK REGULATION BOARD IN PRINTING MACHINE
RESIN-SEALED SEMICONDUCTOR DEVICE
MANUFACTURE OF SYNTHETIC RESIN FILM EXCELLENT IN WOUND SHAPE
THERMAL RECORDING MATERIAL
MANUFACTURE OF SUPERCONDUCTING WIRE
PREPARATION OF SUPERCONDUCTING MATERIAL
TRANSPARENT CONDUCTOR
USING METHOD FOR SUPERCONDUCTOR
PRODUCTION OF GLASSY CARBON
REVERSIBLE COLORING AND DECOLORING MATERIAL
SYSTEM FOR CONSTITUTING MODULATOR
PROCESS AND INSTALLATION FOR PRODUCING CRYSTALLINE DEXTROSE MONOHYDRATE
N-GLYCOSYLATED UREAS, CARBAMATES AND THIOCARBAMATES, PROCESSES FOR THEIR PREPARATION AND THEIR USE
USEFUL INTERMEDIATES FOR THE PREPARATION OF ESTRADIENE DERIVATIVES AND ANTIGENS, AND METHOD FOR THE PREPARATION OF SAID ANTIGENS
SILICA-TITANIA COGEL FROM TWO-STEP HYDROLYSIS
SOLID ADSORBENT FOR UNSATURATED HYDROCARBON AND PROCESS FOR SEPARATION OF UNSATURATED HYDROCARBON FROM GAS MIXTURE
METHOD AND APPARATUS FOR THE INFINITELY VARIABLE SETTING OF THE TAILS U235 CONCENTRATION OF GAS CENTRIFUGE CASCADES FOR THE SEPARATION OF URANIUM ISOTOPES
CONTINUOUS EXTRUSION OF METALS
