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 relating to roof supports for mine workings
摘要
申请公布号
GB1037919(A)
申请公布日期
1966.08.03
申请号
GB19640020052
申请日期
1963.01.29
申请人
KARL MARIA GROETSCHEL
发明人
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
System and method for delivery of short message service messages to a restricted group of subscribers
Semiconductor memory device having reduced component count and lower wiring density
Wood I-beam conditioned reinforcement panel
Device for producing plasma
Trench contact structure of silicon on insulator
Methods and apparatus for controlling ion energy and plasma density in a plasma processing system
Remote control sprinkler control system
Method of treating filariae
High strength low carbon air bag quality seamless tubing
Transmit/receive compensation
Textile detergent formulation on the basis of quaternized glycine nitriles, bleaching agents, nonionic and/or anionic tensides and calcium ion and/or magnesium ion sequestering compounds
Infant rocking chair
3-amino-1-cyanophenyl-uracils
Method of making high performance MOSFET with polished gate and source/drain feature
Method of fabricating metal oxide semiconductor
Method for producing L-allysine acetal
Method for producing cellulose particles
IC card
Open-cell foam and method of making
Network system for a first module port auto configuring same mode as a second module port