Système de paliers pour l'arbre de turbines hydrauliques actionnant l'outil de perforation dans les forages profonds

申请公布号：FR1173551(A)

申请号：FRD1173551

申请日期：1957.04.09

申请公布日期：1959.02.26

申请人：

MANNESMANN-TRAUZL AKTIENGESELLSCHAFT

分类号：E21B4/02

主分类号：E21B4/02

DEVELOPER CARRYING ROLLER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

LIGHT-DEFLECTING DEVICE, IMAGE FORMING APPARATUS AND METHOD FOR MANUFACTURING THE LIGHT DEFLECTING DEVICE

PARTITION PLATE FOR INTAKE PORT, SAND CORE FOR FORMING INTAKE PORT AND CYLINDER HEAD

ULTRASONIC DIAGNOSTIC APPARATUS

HOLDING DEVICE FOR THIN DISK

SOLUTION MEASURING DEVICE

VEHICULAR SUSPENSION DEVICE

METALLIC FOIL WITH RESIN FILM, WIRING SUBSTRATE AND ITS MANUFACTURING METHOD

PRINTED WIRING BOARD

HONING WORK TOOL

JOINING METHOD AND APPARATUS USING SOLDER

ROLLING BEARING FILLED WITH LUBRICANT-CONTAINING POLYMER AND METHOD OF MANUFACTURING THE SAME

METHOD OF BRAZING COMPRESSOR NOZZLE RING OF GAS TURBINE

POLYAMIDE POROUS PARTICLE AND MANUFACTURING METHOD THEREOF

LUBRICANT COMPOSITION

17alpha-ALKYL-17beta-OXY-ESTRATRIENES AND INTERMEDIATE FOR PRODUCTION THEREOF, AND USE OF 17alpha-ALKYL-17beta-OXY-ESTRATRIENE FOR PRODUCTION OF MEDICAMENT AND PHARMACEUTICAL PREPARATION

LUBRICANT AND RECORDING MEDIUM

COMPOSITE OF ALUMINUM ALLOY AND RESIN AND ITS MANUFACTURING METHOD

SUBSTRATE FOR ELECTRO-OPTICAL DEVICE, SUBSTRATE FOR SEMICONDUCTOR DEVICE, ELECTRO-OPTICAL APPARATUS, AND ELECTRONIC APPARATUS

ELECTRODE ASSEMBLY FOR SECONDARY BATTERY WITH SEPARATION LOWER TAPE ADHERED THERETO