APPARATUS FOR PROTECTING MINE LININGS AGAINST EFFECTS OF CRUMPING AND INCREASED FORMATION PRESSURE,申请号PL19780209035-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	APPARATUS FOR PROTECTING MINE LININGS AGAINST EFFECTS OF CRUMPING AND INCREASED FORMATION PRESSURE
摘要
申请公布号	PL113923(B2)	申请公布日期	1981.01.31
申请号	PL19780209035	申请日期	1978.08.12
申请人		发明人
分类号	E21D;E21D15/44;(IPC1-7):E21D15/44	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

HALTEFEDER ZUR LÖSBAREN VERBINDUNG VON ZWEI BAUTEILEN

OPTOCHEMICAL SENSOR MEMBRANE AND METHOD FOR PRODUCING THE SAME

GASZUFÜHRVORRICHTUNG

VERFAHREN ZUR OBERFLÄCHGENBESCHICHTUNG VON SYNTHETISCHEN HARZEN

METHOD AND DEVICE FOR GENERATING A THERMAL FLUX LOADED WITH PARTICLES

METHOD AND DEVICE FOR THE ITERATIVE RECONSTRUCTION OF CARDIAC IMAGES

SHAPE RETAINING COATED CONTAINERS AND METHODS FOR MAKING THE SAME

AN EFFICIENT METHOD TO COMPUTE ONE SHOT FREQUENCY ESTIMATE

EVENT LOGGING METHOD AND DEVICE

PROCESS FOR PRODUCING SUPERCONDUCTING WIRE ROD

EXPENDABLE UNITARY QUICK MOUNT ABRASIVE DISCS AND SUPPORT PAD THEREFOR

Double glazed unit for a vehicle comprises two panes with a space between the panes dependent on their position within the window opening and which is in a release position

Presentation system support for use in e.g. shop window, has presentation rail extending in direction as supporting section, and locking bar accommodated in its locking position before recess to hold rail in recess

MOBILE TERMINAL, ENTRANCE/EXIT MANAGING APPARATUS, AND FUNCTION SUPPRESSION/CANCELLATION PROGRAM

Crank shaft pulley unit with integrated coupling for automated stop and start of vehicle, comprising specifically positioned ball bearing

Security or safety system for detecting entry of a person or body part into a particular area e.g. a prohibited area or parts of a machine

Formulation for analgesic ear drops contains polyhydric alcohol, especially butan-1,3-diol or glycerol, dimethyl sulfoxide and optionally acid or buffer system and dexpanthenol

Clip for fastening mounted and support parts within motor vehicle area, has clip with head area and spring blades that are inserted in opening of support part so that functional direction of clip forms tolerance adjustment direction

Self contained release for fire door has a permanent magnet grip with battery powered sliding release powered by an electromagnet

Current collector for e.g. tram vehicle, has conductor connected to current supply, where heat treatment arises in contact area and movement of contact point is provided along conductor/ contact area for distribution of heat in vehicle