Many languages studying system and operation process of including teaching material by paper,申请号KR20050097616-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	Many languages studying system and operation process of including teaching material by paper
摘要
申请公布号	KR100737427(B1)	申请公布日期	2007.07.09
申请号	KR20050097616	申请日期	2005.10.17
申请人		发明人
分类号	G06Q50/20;G09B5/04;G09B19/06	主分类号	G06Q50/20
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Foam and carpet floor covering for vehicle - with system for attaching wear prevention plate

Ring spinning frame - has automatic changeover mechanism on roving bobbin supply creel

Cover for inspection hole in ceiling - incorporates lock member actuated by swinging arm

Built-in kitchen unit for fitted ovens - has forwardly extending rear wall in upper cupboard for access to pipes

Low-temp. refuse pyrolysis in suspended tubes - with gas fractionated after withdrawal at intervals and residues reaching tube foot

Electrical contact element - has one-piece stamping fitted with one-piece spring having projecting spring arms parallel to spring contact arms

Swing seat with improved safety - has load bearing injection moulded carrier with elastic pad moulded over it and having gas-expanded edges

Infantry projectile propels shot forward and backward - from similar hemispherical charges sepd. by transverse detonator assembly

Plastics bottle transport crate - has column supports between compartments in rows extending level with top

Sealing undersurface of layer of contaminated soil - by placing layer of waterproof material under soil

Pneumatic measurement plug esp. for bores - holds sprung measurement tips in bore contact positions after removal of plug from bore

Cement-bonded coke mouldings - prepd. by mixing fine coke with mineral mortar and moulding moist mixt. in shaping machine

Metal work deburring tool - has sonde inserted into bore to discharge high pressure water

Data protecting appts. for data network - uses programme segment capable of withholding permission for use of data from transmission side if user is unauthorised

Automatically controlling substance concn. in liq. leaving dialyser - by automatically varying differential pressure between the liquid and the dialysate

Carbon-forming additive for refractory prods. - comprising carbon source and dehydrating reactant, used in ferrous metallurgy

Comber detaching cylinder - made of fibre cpd. material with metal end journals for strength

Versatile balloon catheter for pulsed laser surgery - uses segmented multi-fibre optics to control energy distribution

Balancing machine e.g. for rotary tools - has housing contg. HF motor stator and test body supporting shaft carrying motor rotor

Opto-electronic correlator for information identification