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
Fördergefäß zum Rohrbrunnenbau
摘要
申请公布号
DE19931737(C2)
申请公布日期
2003.06.05
申请号
DE19991031737
申请日期
1999.07.08
申请人
FROHNERT, ALFRED
发明人
FROHNERT, ALFRED
分类号
E21B11/00;E21B27/00;(IPC1-7):E21B27/00
主分类号
E21B11/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Synthesis of amino hydroxy cyclopentenones
Winding unit
Process for purifying metallurgical-grade silicon
PANTY HAVING ELASTIC YARN MINIMIZING SHRINKAGE AND IMPARTING COMFORTABLE CONFORMITY ASSEMBLED THERIN AND METHOD
TREATMENT OF SLUDGE IN STORAGE TANK WITH FLOATING CEILING
Compressive receiver
Transceiver
Recursive type digital filter
MNOS Memory device and method of manufacture
Device for the automatic testing of digital filters in moving-target indicators
Method of detecting weld lines
Television display system incorporating a coma corrected deflection yoke
Electric switch with kick-off attachment
Coupler having arbitrary impedance transformation ratio and arbitrary coubling ratio
Halogen incandescent lamp
Panoramic dental X-ray machine employing image intensifying means
Electrical devices comprising conductive polymer compositions
PBX Field display
Method of preparing poly-substituted acylbenzenes
Method for forming a cyan dye image
