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
A FLOORING AND CAVING METHOD OF LIQUIDATING EMPTY MINES SPACE IN AN UNDERGROUND MINE
摘要
申请公布号
PL265848(A1)
申请公布日期
1988.06.09
申请号
PL19870265848
申请日期
1987.05.21
申请人
发明人
分类号
E21D;E21F15/08;(IPC1-7):E21D/
主分类号
E21D
代理机构
代理人
主权项
地址
您可能感兴趣的专利
OSTEOGENESIS ACCELERATOR
PRODUCTION METHOD FOR NANO ACICULAR CERIA POWDER
PATTERN FORMING METHOD AND DISPLAY USING THE SAME
IMAGE FORMING DEVICE AND IMAGE FORMING METHOD
IMAGE FORMING APPARATUS
PROCESSOR, AND METHOD FOR INHERITING STORED INFORMATION IN THE PROCESSOR
IMAGE FORMING APPARATUS
IMAGE FORMING APPARATUS
IMAGE FORMING APPARATUS AND IMAGE PROCESSING DEVICE
IMAGE FORMING APPARATUS
AIR BAG DEVICE FOR PEDESTRIAN
AIR BAG DEVICE FOR PEDESTRIAN
AIR BAG PROCESSING DEVICE
ENGINE START CONTROLLER
VEHICLE-THEFT DETERMINING SYSTEM, VEHICLE, PROGRAM AND INFORMATION STORAGE MEDIUM
ANTITHEFT SYSTEM FOR VEHICLE
VEHICLE, ELECTRONIC KEY, DATA PROCESSOR, AND VEHICLE CONTROL METHOD
FIELD APPARATUS MAINTENANCE SYSTEM
HOT WATER STORAGE TYPE HOT WATER SUPPLY SYSTEM
SPECIFIC INFORMATION MANAGEMENT METHOD, SPECIFIC INFORMATION MANAGEMENT PROGRAM AND IMAGE PROCESSOR
