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
Rotary machine
摘要
申请公布号
US2176788(A)
申请公布日期
1939.10.17
申请号
US19360078276
申请日期
1936.05.06
申请人
THE WHELAND COMPANY
发明人
CAMPBELL GEORGE E.
分类号
E21B3/04
主分类号
E21B3/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Digital document management system, digital document management method, and digital document management program
METHOD OF MARKING AND APPARATUS
DATA PROCESSING SYSTEM AND METHOD
VESICLE TRAFFICKING STRESS-RELATED POLYPEPTIDES AND METHODS OF USE IN PLANTS
FREQUENCY-CHANGE RATE-LIMIT OF CAPACITOR-BANK OSCILLATOR
Method of removing DC offset for a ZIF-based GSM radio receiver with digital frequency offset correction
DEVICE AND METHOD FOR CONTROLLING A THICK MATTER PUMP
Carrier tape for electronic components
System for bi-chamber stimulation using dynamically adapted interpulse delay
Sewing machine for forming running-stitch seams
BUTTERFLY VALVE DEVICE
Compressed solid dosage forms with drugs of low solubility and process for making the same
METHOD FOR OPERATING A PROCESSOR BUS
Household apparatus, in particular a laundry treatment machine like a washing machine, a washing and drying machine or a drier with a control panel
WINDING PLANT FOR ROLLED-STOCK WITH IMPROVED COIL-WINDING CONTROL SYSTEM
TEST LEVER
Vehicular occupant protection device deployment apparatus and confirming method of battery voltage therefor
Doppler type ultrasonic flowmeter, flow rate measuring method using doppler type ultrasonic flowmeter and flow rate measuring program used in this doppler type ultrasonic flowmeter
Retractable seat assembly for a motor vehicle
Machine for filling and closing tubes