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
Mud device
摘要
申请公布号
US2631729(A)
申请公布日期
1953.03.17
申请号
US19460661999
申请日期
1946.04.13
申请人
OSBON HENRY N
发明人
OSBON HENRY N.
分类号
E21B21/06
主分类号
E21B21/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
INTERFACE BETWEEN ASYNCHRONOUS DEVICES
METHOD AND APPARATUS FOR DETECTION AND CORRECTION OF ERROR IN MEMORY MODULE
CONTRAST CONTROL DEVICE FOR DISPLAYING DISPLAY
DISPLAY BOARD
INTERIOR DECORATING APPLIANCE FOR TEACHING MATERIAL AND ITS PRODUCTION
METHOD FOR CREATING OF PSEUDO-PHOTOGRAPHIC PRINT
ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND ITS PRODUCTION
OFF-LINE TEACHING METHOD FOR ROBOT
METHOD AND DEVICE FOR TRANSFER FOR IMAGE FORMING DEVICE
COLOR IMAGE FORMING DEVICE
CONTACT ALIGNER
METHOD FOR PROCESSING SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL
X-RAY RADIOGRAPHIC EQUIPMENT
DISPLAY DEVICE FOR CAMERA
RECORDING MEDIUM FEEDING DEVICE
POLYMER-DISPERSED LIQUID CRYSTAL DISPLAY ELEMENT
SPECTACLE PLASTIC DYED LENS
DAZZLEMENT PREVENTING DEVICE AND CONTROL METHOD THEREOF
ADDITIONAL OPTICAL SYSTEM FOR VIBRATION-ISOLATOR
