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
Oil saver
摘要
申请公布号
US1845683(A)
申请公布日期
1932.02.16
申请号
US19310534872
申请日期
1931.05.04
申请人
GORDON SAUNDERS
发明人
SAUNDERS GORDON
分类号
E21B33/08
主分类号
E21B33/08
代理机构
代理人
主权项
地址
您可能感兴趣的专利
TURBULENCE GENERATOR
DIFFERENTIAL PRESSURE TRANSMITTER
METHOD FOR CHECKING MASK FOR PRINTED SUBSTRATE
OSCILLATING STROKE ADJUSTING DEVICE IN OSCILLATING MOTION MECHANISM
TRANSMISSION
STRUCTURE FOR SUPPORTING METAL MEMBER OF CLUTCH
SHAFT SEALING DEVICE
BASE MATERIAL FOR PLANT CULTIVATION
REFUSE DISPOSAL MACHINE
Apparatus for reducing particles discharged by combustion means
Sodium sulphur cells
Device for detecting defective combustion in an internal combustion engine
Multiple color single gun TV picture tube
Process for the production of a ceramic member having inclusions of electrically conductive material flush with its surface
Device for supporting a shift lever in a manual transmission for an automobile
Keratometer
Modular electrical shunts and switches for integrated circuit applications
Smoke suppressed rigid polyurethane foam
Method and apparatus for treating textile cord
Anti-allergic mono salt of 6-methylamino-4-oxo-10-propyl-4H-pyrano[3,2-g]-quinoline-2,8-dicarboxylic acid