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
Educational device
摘要
申请公布号
US3166856(A)
申请公布日期
1965.01.26
申请号
US19620172275
申请日期
1962.02.09
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
UTTAL WILLIAM R.
分类号
G09B13/00
主分类号
G09B13/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Tab Sweeping and Grouping
Graphical User Interface Comprising Multiple, Interrelated, Automatically-Adjusting Components
LIGHT TRANSMITTING ELECTRICALLY CONDUCTIVE MEMBER AND METHOD FOR PATTERNING THE SAME
TOUCH PANEL
CAPACITIVE TOUCH ARRAY SUBSTRATE, TOUCH DISPLAY SCREEN AND DRIVING METHOD THEREOF
METHOD AND APPARATUS FOR CONTROLLING DATA OVERLAID UPON AN IMAGE
SPLIT ROTATING KEYBOARD SYSTEM
MOBILE TERMINAL AND INCOMING INFORMATION DISPLAY METHOD
TOUCH AND GESTURE CONTROL SYSTEM AND TOUCH AND GESTURE CONTROL METHOD
HAPTIC ACTUATOR INTEGRATED WITH SENSOR ELECTRODE AND WEARABLE DEVICE COMPRISING THE SAME
POWER TRANSFER ESTIMATION
METHOD FOR CONTROLLING A CHAIN-LINK CONVERTER
RESOURCE ALLOCATION AND DEALLOCATION FOR POWER MANAGEMENT IN DEVICES
DYNAMIC BATCH SIZE AND INTERNAL TRANSPORTATION
Method for determining a movement limit
SYSTEMS AND METHODS FOR SMART SPACES
IMAGE FORMING APPARATUS, CONTROL METHOD OF CONTACTING/SEPARATING STATE OF COMPONENT
FIXING DEVICE THAT FIXES IMAGES OF DECOLORABLE AND NON-DECOLORABLE MATERIALS
IMAGE FORMING APPARATUS
DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS
