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
Improvements in and relating to collapsible pit props for use in mines
摘要
申请公布号
GB630972(A)
申请公布日期
1949.10.25
申请号
GB19460029736
申请日期
1946.10.05
申请人
RALPH BARRASS OLD
发明人
分类号
E21D15/28
主分类号
E21D15/28
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MULTIENZIMINĖ KOMPOZICIJA, JOS GAVIMO BŪDAS IR PANAUDOJIMAS DUONOS GAMINIAMS PAGERINTI
Microbial biotransformation.
Kassett for oppbygging av skuffeseksjoner
SLAGLINE SLEEVE FOR SUBMERGED ENTRY NOZZLE, METHOD OF MANUFACTURING AND COMPOSITION THEREOF
VALGOMOJI DRUSKA
TURBO COMPRESSOR
METHOD FOR BLOCKING DIGITAL BIT STREAM AND DEVICE THEREFOR
Fremgangsmåte for å prosessere tidsforlöpte seismiske datasignaler
KEY HAVING IDENTIFICATION SYSTEM
Fibers made from long chain branched syndiotactic vinyl aromatic polymers
Fremgangsmåde og apparat til hørehjælp med talehastighedsstyrefunktion
Chemical mechanical planarization tool having a linear polishing roller
Absorbent composite web
ELECTRONIC CARD, FRONT FACE THEREFOR, AND METHOD FOR INSERTING CARD INTO HOUSING AND EXTRACTING CARD FROM HOUSING
METHOD AND APPARATUS FOR AUTOMATICALLY GENERATING SCHEDULES FOR WAFER PROCESSING WITHIN A MULTICHAMBER SEMICONDUCTOR WAFER PROCESSING TOOL
Improved medical pump tubing
COMPONENT MEMBER OF DEFLECTION PIVOT AND MANUFACTURE THEREOF
SUBSTRATE TRANSPORT DRIVE SYSTEM
ELECTROPLATING SYSTEM
SEMICONDUCTOR DEVICE AND MANUFACTURE OF THE SAME
