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
Mine equipment
摘要
An elongated frame provides a track over a mining machine for a carriage which is hauled along by an endless chain. The carriage carries assembled crown roof support sections to adjacent the newly exposed rock boundary.
申请公布号
US4095434(A)
申请公布日期
1978.06.20
申请号
US19750624234
申请日期
1975.10.20
申请人
COAL INDUSTRY (PATENTS) LIMITED
发明人
HUNTER, RODNEY JAMES ANTHONY;PLUMMER, DEREK
分类号
E21D11/40;(IPC1-7):E21D13/04
主分类号
E21D11/40
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ROTATING BODY CLEANING DEVICE, HEATING DEVICE AND IMAGE FORMING DEVICE PROVIDED WITH THE HEATING DEVICE
INTERMEDIATE TRANSFERRING MEMBER AND IMAGE FORMING DEVICE
MOUNTING STRUCTURE FOR CIRCUIT SUBSTRATE
RADIATION IMAGE INFORMATION READING METHOD AND DEVICE
FIBER SCREEN AND METHOD OF MANUFACTURING FIBER SCREEN
AMPHIBIAN WIDE CONVERSION LENS ATTACHED/DEDICATED TO WATERPROOF CAMERA HOUSING
CAMERA
OPTICAL SCANNING OPTICAL UNIT
FLUORESCENCE TRANSMISSION ELEMENT
HEAT DEVELOPABLE PHOTOSENSITIVE MATERIAL AND IMAGE FORMING METHOD USING THE SAME
POINTER TYPE ELECTRONIC CLOCK
DEVICE AND METHOD FOR TESTING INTEGRATED CIRCUIT
JITTER ANALYZER
VARIABLE SPACE PROBE CHIP ADAPTER FOR DIFFERENTIAL MEASURING PROBE
DETECTING METHOD FOR ROTATION STATE OF ROTATING BODY BY USING ELECTRONIC SHUTTER
SPECIMEN CONVEYANCE APPARATUS
MEASURING INSTRUMENT AND MEASURING METHOD FOR THERMAL CONDUCTIVITY
ELECTRONIC CLOCK
METHOD AND APPARATUS FOR DETECTING DIRT ON EYE LENS
PRESSURE SENSOR