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
Mining machine with superposed wedge-like cutter
摘要
申请公布号
US2666628(A)
申请公布日期
1954.01.19
申请号
US19500146181
申请日期
1950.02.25
申请人
MAVOR & COULSON, LIMITED
发明人
SPROUL JOHN CONNEL
分类号
E21C27/32
主分类号
E21C27/32
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MULTIPLEX TRANSMISSION DEVICE
GYROTRON OSCILLATING TUBE
DISPLAY DRIVING DEVICE
DISPLAY DEVICE
DUPLICATING METHOD AND DUPLICATING DEVICE FOR HOLOGRAM
HOLOGRAM RECORDING FILM
TONER REPLENISHING DEVICE
ELECTROSTATIC CHARGING DEVICE
ORIGINAL PLATE FOR PLANOGRAPHIC PRINTING PLATE
DRIVING AND CONTROL METHOD FOR ROBOT
ADHESIVE FILM LABEL FOR FIBER
ELECTROSTATIC CHARGING DEVICE, IMAGE FORMING DEVICE AND PROCESS CARTRIDGE
ELECTROPHOTOGRAPHIC SENSITIVE BODY
PRINTING PLATE MAKING METHOD AND DEVICE
PHOTOSENSITIVE MATERIAL PROCESSING DEVICE
FILM UNIT PROVIDED WITH LENS
PANORAMIC ADAPTER
OPTICAL SYSTEM FOR ILLUMINATION
PROJECTOR
LIQUID CRYSTAL ORIENTATION FILM COMPOSITION, LIQUID CRYSTAL ORIENTATION FILM AND MANUFACTURE THEREOF, LIQUID CRYSTAL HOLDING BASE, AND LIQUID CRYSTAL DISPLAY ELEMENT
