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
Portable drilling machines
摘要
申请公布号
US2833518(A)
申请公布日期
1958.05.06
申请号
US19520316299
申请日期
1952.10.22
申请人
NATIONAL FIREPROOFING CORPORATION
发明人
AUGSBURGER CLYDE
分类号
E21B7/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
COMPOSITE RESONATOR FOR USE IN TUNABLE OR FIXED FILTERS
A STEREOSCOPIC DISPLAY APPARATUS
Device and method for damping thermoacoustic oscillations in a combustion chamber
Data rate management system and method for A/V decoder
LONGITUDINALLY ADJUSTABLE VEHICLE SEAT
CONTINUOUS FLOW POLYMERISATION PROCESS
TRAFFIC CONTROL SYSTEM, VEHICLE CONTROL SYSTEM, AND TRAFFIC CONTROL METHOD
Thermocouple
SWITCH
PROCESSES FOR THE MANUFACTURE OF A PHARMACEUTICALLY ACTIVE AGENT
OXYGEN SEPARATION METHOD AND SYSTEM WITH A PLASMA PUMP AND A MEMBRANE
RADIATION CONVERSION ELEMENTS WITH REFLECTORS FOR RADIOLOGICAL IMAGING APPARATUS
DEVICE FOR HOLDING AN ANCILLARY DEVICE AT RIGHT ANGLES TO AN IMAGINARY AXIS OF ROTATION
Hinge assembly for household appliances having an horizontally-pivoted front door
APPARATUS, METHOD, PROGRAM AND RECORDING MEDIUM FOR COMPUTATION OF PAIRINGS OVER FINITE FIELDS
CHARGE-PUMP CIRCUIT
HIGH SENSITIVITY OPTICAL RECEIVER EMPLOYING A HIGH GAIN AMPLIFIER AND AN EQUALIZING CIRCUIT
Process for the preparation of 2-(2-aminopyrimidin-4-yl)-1H-indol-5-carbonic acid derivatives
SYSTEMS AND METHODS FOR PROTECTING DISPLAY COMPONENTS FROM ADVERSE OPERATING CONDITIONS
SHOULDER PROSTHESIS