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
Tongs
摘要
申请公布号
US1837689(A)
申请公布日期
1931.12.22
申请号
US19300429052
申请日期
1930.02.17
申请人
BLACKWELL & SUNDE, INCORPORATED
发明人
SUNDE BENJAMIN W.
分类号
E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BIRD-DAMAGE PREVENTING DEVICE
COMMUNICATION CONTROLLER
DEVICE AND METHOD FOR DETECTING PASSENGER POSITION AND SYSTEM AND METHOD FOR PASSENGER RESTRAINT
CONFLAT FLANGE FOR VACUUM SEAL AND MANUFACTURE THEREOF
APPARATUS FOR DIAGNOSING OCCLUSAL FORCE
CLUTCHLESS STRUCTURE OF SINGLE-PISTON TYPE VARIABLE CAPACITY COMPRESSOR
CONDOM-PROMOTING SNAP AND ITS PACKAGING METHOD
T-SHAPE BUSHING
ELECTRIC PRECIPITATOR
PRESS-FITTING APPARATUS
METHOD AND EQUIPMENT OF AUTOMATIC ARTICLE PROCESSING OF
METHOD AND APPARATUS FOR GRINDING THERMOSETTING RESIN MOLDED PRODUCT
LIQUID CRYSTAL DISPLAY DEVICE
MIM TYPE NON-LINEAR ELEMENT AND MANUFACTURE THEREOF
LIQUID CRYSTAL DISPLAY DEVICE
DIGITAL VIDEO SIGNAL PROCESSING METHOD OF HDTV RECEIVER WITH PIP FUNCTION AND ITS DEVICE
VALVE AND ITS ACTUATOR
POLYMER COMPLEX REED VALVE
FLUTTER PREVENTING DEVICE FOR STEERING SYSTEM
VIDEO SIGNAL PROCESSING CIRCUIT OF COLOR VIDEO CAMERA OF SOLID IMAGE PICKUP ELEMENT TYPE
