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
Vorrichtung zum Verbinden eines Bohrstranges mit einem Rohr od.dgl.
摘要
申请公布号
DE3439653(C1)
申请公布日期
1985.07.18
申请号
DE19843439653
申请日期
1984.10.30
申请人
WIRTH MASCHINEN- UND BOHRGERAETE-FABRIK GMBH, 5140 ERKELENZ, DE
发明人
TIBUSSEK, FRITZ, 4050 MOENCHENGLADBACH, DE
分类号
E21B7/136;E21B7/20;E21B17/046;E21B23/04;(IPC1-7):E21B23/04;E21B41/04
主分类号
E21B7/136
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Substituted furans as inhibitors of 3-hydroxy-3-methylglutaryl-coa reductase
TREATMENT DEVICE FOR PREVENTING INFECTION OF ACQUIRED IMMUNO-DEFICIENCY SYNDROME
IMAGE RECORDER
IMAGE SEGMENTING PROCESSOR
METHOD FOR CORRECTING MAGNIFICATION OF COPYING MACHINE
OPTICAL FIBER PROVIDED WITH RADIATION RESISTANCE
COLOR ZOOM COPYING DEVICE
SWITCHING DEVICE FOR OPTICAL CONNECTOR
SCANNING LINE DENSITY CONVERSION METHOD
METHOD OF CONTROLLING REAR WHEEL STEERING OPERATION FOR AUTOMOBILE
AIR CONDITIONER FOR VEHICLE
SEMICONDUCTOR DEVICE
METHOD FOR REMOVING COAT OF END OF DRUM
MANUFACTURE OF POSITIVE CHARACTERISTIC SEMICONDUCTOR PORCELAIN
MAGNETIC HEAD ASSEMBLY
SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL HAVING SUPERIOR GRAININESS AND DESILVERING EFFECT
DIRECT MEMORY ACCESS CONTROL SYSTEM
PRODUCTION OF SENSITIVE BODY FOR ELECTROPHOTOGRAPHY
AIR CONDITIONER FOR VEHICLE
POLYESTER COMPOSITION