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
System and method for on-line essay evaluation
摘要
申请公布号
GB2337844(A)
申请公布日期
1999.12.01
申请号
GB19990022048
申请日期
1998.03.20
申请人
* EDUCATIONAL TESTING SERVICE
发明人
DAVID L * KUNTZ;PATRICIA G * WILLIAMS;CHERYL A * POCINO;MICHELE * ROSENTHAL;LOU A * HATFIELD;GARY * DRISCOLL;ARLENE A * JOHNSON;THEODORE E * KESSLER;HELEN D * KAHN
分类号
G09B5/06;G09B5/14;G09B7/02;(IPC1-7):G09B3/00
主分类号
G09B5/06
代理机构
代理人
主权项
地址
您可能感兴趣的专利
A rotary pump
Improvements in and relating to unicrystalline oxide material
Process for treating liquid extracted from soda-roasted laterite
Reactions and intermediates of use in syntheses of compounds of the 2-dehydroemetine series
Improvements in and relating to golf clubs
A method and apparatus for granulating pieces of thermoplastic synthetic resin film
Improvements in or relating to a method of forming a fire-retardant adhesive bond
Pneumatically operated closure device
Folding door
Improvements in or relating to an apparatus for soldering heat exchanger elements
Improvements in or relating to an electrolytic shaping apparatus and method
Improvements in work-piece holding structures
Method for fluidtightly securing a metal part, such as a connection, to a glass member, and products obtained thereby
Improvements in or relating to smokers' lighters
Clay bleaching
Derivatives of the antibiotic sparsomycin a
Process for dyeing textile material of natural or regenerated cellulose fibres
Process for mixing and apparatus for practising the process
Improvements in pulse radar systems
Peltier effect refrigeration or heating device