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
Grubenstempel
摘要
申请公布号
DE1012275(B)
申请公布日期
1957.07.18
申请号
DE1954C009927
申请日期
1954.09.08
申请人
COAL INDUSTRY (PATENTS) LIMITED
发明人
DAY CHARLES EDWARD;JONES CYRILL TREHARNE
分类号
E21D15/54
主分类号
E21D15/54
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BIAS CIRCUIT
METHOD AND DEVICE FOR DETECTING MOVING STATE OF MOVING BODY GROUP
METHOD FOR RETRIEVING DATA BASE
FREQUENCY DISTRIBUTION PREPARING CIRCUIT
PROCESSOR SIMULATION DEVICE
HASH JUMP CONTROLLER
LOGIC SIMULATION SYSTEM
INPUT DEVICE
DATA SAVING AND RESTORING SYSTEM FOR INFORMATION PROCESSOR
AUTOMATIC TELLER MACHINE
METHOD AND SYSTEM FOR GENERATING QUESTION
FILE MANAGING SYSTEM FOR DRAW TYPE INFORMATION RECORDING MEDIUM
TEST COVERAGE ACQUISITION SYSTEM
CONTROL CIRCUIT
VARIANCE VALUE CALCULATION CIRCUIT
AUTOMATIC READER FOR TIME CHART
DRAWING CONTROL UNIT
DATA PROCESSOR
FILE UPDATA METHOD BY PLURAL TASKS
METHOD OF DELETING TRANSACTION DATA STORAGE
