Appareil pour forages profonds,申请号FRD881533-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Appareil pour forages profonds
摘要
申请公布号	FR881533(A)	申请公布日期	1943.04.28
申请号	FRD881533	申请日期	1942.04.25
申请人	FU:RTHER TIEFBOHRANSTALT U. PUMPENBAU VORMALS GEBRU:DER GILDE INH. A. KRIEGBAUM	发明人
分类号	E21B11/04;E21B27/00	主分类号	E21B11/04
代理机构		代理人
主权项
地址

您可能感兴趣的专利

SETTING OF RESIDUARY SUBSTANCE OF SOYBEAN OIL

METHOD OF FABRICATING NONNLINEAR VOLTAGE RESISTOR

OPTIMAL CONTROLLING METHOD FOR ROLLING SPEED

PREPARATION OF JULIENNE BURDOCK

PREPARATION OF FORMED ICE CREAM CONTAINING CRUSHED FRUIT

MANUFACTURE OF SEMICONDUCTOR DEVICE

METHOD FOR CONTROLLING SPEED OF PULSE MOTOR

LOGIC CIRCUIT FOR TRANSMISSION AND RECEPTION

SEMICONDUCTOR LASER CONNECTOR FOR SINGLE MODE OPTICAL FIBER

AUTOMATIC SWITCHING UNIT FOR STEREOOMONAURAL

MANUFACTURING METHOD OF COMPLEMENTARY MIS SEMICONDUCTOR DEVICE

FIELD EFFECT TRANSISTOR

METHOD AND APPARATUS FOR COOLING HOT STEEL SHEET

READDIN UNIT OF FACSIMILE ORIGINAL

SEMICONDUCTOR HETERO JUNCTION LASER

DIRECT CURRENT ELECTRIC MACHINE

OILLIMMERSED TRANSFORMER

STARTING METHOD OF SYNCHRONOUS MOTOR

ADJUSTABLE EXPOSING DEVICE FOR SEMICONDUCTOR DEVICE MANUFACTURE