Collapsible rotary core drill,申请号US19350016650-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	Collapsible rotary core drill
摘要
申请公布号	US2099859(A)	申请公布日期	1937.11.23
申请号	US19350016650	申请日期	1935.04.16
申请人	MACREADY GEORGE A	发明人	MACREADY GEORGE A.
分类号	E21B10/66	主分类号	E21B10/66
代理机构		代理人
主权项
地址

您可能感兴趣的专利

PH SENSOR AND ION WATER GENERATOR WITH THE SAME

FINGERPRINT RECOGNITION SENSOR AND METHOD OF MANUFACTURING IT

MAGNETIC FLUID SEALING DEVICE

ROTATING SHAFT COUPLING DEVICE

PUMP OPERATION CONTROL METHOD

SUBSTRATE FOR BIOCHEMICAL REACTION DETECTION CHIP AND ITS MANUFACTURING METHOD, BIOCHEMICAL REACTION DETECTION CHIP, APPARATUS AND METHOD FOR EXECUTING BIOCHEMICAL REACTION, AND RECORDING MEDIUM

DC-TO-DC CONVERTER

LEAK AND PHASE INTERRUPTION DISCRIMINATING MEASURING INSTRUMENT

HOLOGRAM COMPOSITE FOR LIQUID CRYSTAL DISPLAY DEVICE

POSITIVE PHOTOSENSITIVE COMPOSITION

PHASE DIFFERENCE PLATE

SYSTEM AND METHOD FOR DETECTING INDICATION POSITION, PRESENTATION SYSTEM AND INFORMATION STORAGE MEDIUM

MOTION VECTOR DETECTING APPARATUS

DISK CONTENTS DISPLAY DEVICE AND COMPUTER READABLE RECORDING MEDIUM IN WHICH DISK CONTENTS DISPLAY PROGRAM IS RECORDED

METHOD FOR CONVERTING FORMAT OF IMAGE AND RECORDING MEDIUM WITH ITS PROGRAM RECORDED

BATTERY CHARGER CONTROLLER

NONCONTACT POWER FEEDER

DEFECT MEASURING DEVICE AND METHOD OF SPECIMEN

ELECTRON BEAM INSTRUMENT