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
Arcuate shaft lining segments
摘要
申请公布号
GB2069567(A)
申请公布日期
1981.08.26
申请号
GB19800005666
申请日期
1980.02.20
申请人
CHARCON TUNNELS LTD
发明人
分类号
E21D5/016;E21D5/04;(IPC1-7):E21D5/01
主分类号
E21D5/016
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ELECTRO-MECHANICAL VIBRATION CONVERTER
POWER CONTROL SYSTEM
Y/C SEPARATOR CIRCUIT
ASPECT RATIO CONVERTING METHOD
VIDEO SIGNAL REPRODUCING METHOD AND A/D CONVERSION METHOD FOR VIDEO SIGNAL
LENS ARRANGEMENT FOR PHOTODIODE DEVICE PROVIDED WITH APERTURE CONTAINING LENS REGION AND NON-LENS REGION
ELECTRONIC DEVICE
FLEXIBLE ELECTROOPTICAL HYBRID WIRING BOARD
BACKGROUND ELIMINATION DEVICE FOR DIGITAL COPYING MACHINE PROVIDED WITH AUTOMATIC DOCUMENT FEEDING DEVICE
ORIGINAL READER
COLOR NOISE REDUCTION CIRCUIT
PICTURE SIGNAL PROCESSING UNIT
IMAGE COPY DEVICE
MESSAGE SERVICE SYSTEM
IMAGE RECOGNIZING DIALER
TRANSMISSION EQUIPMENT
JUDGEMENT METHOD FOR TEST STATE OF COMMUNICATION LINE
TRANSMISSION RECEPTION SWITCHING SYSTEM FOR RADIO EQUIPMENT
PORTABLE RADIO EQUIPMENT
ERROR CORRECTION METHOD AND DEVICE THEREOF