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
棋盘(音乐知识棋)
摘要
平面性产品,省略其它视图。
申请公布号
CN3121284D
申请公布日期
1999.09.15
申请号
CN99300414.8
申请日期
1999.01.22
申请人
教育部教学仪器研究所
发明人
吴颖; 赵蕙英
分类号
21-01-G0010
主分类号
21-01-G0010
代理机构
代理人
主权项
地址
100080北京市海淀区海淀路163号
您可能感兴趣的专利
VIDEO SIGNAL PROCESSING UNIT, VIDEO SIGNAL PROCESSING SYSTEM AND ITS METHOD
IMAGE PICKUP DEVICE AND IMAGE-PROCESSING METHOD
IMAGE PROCESSOR
CASING OF ELECTRONIC EQUIPMENT AND IMAGE READER
CARE MANAGEMENT AND SUPPORT METHOD
RIPPLE COUNTER, AND COUNTER CORRECTION METHOD FOR THE RIPPLE COUNTER
POWER AMPLIFIER
FACSIMILE EQUIPMENT
TOUCH SENSOR
ELECTROMAGNETIC WAVE ATTENUATOR FOR MOBILE COMMUNICATION TERMINAL
MICROSTRIP ANTENNA
DISTRIBUTED CONSTANT FILTER
HOLDING AND FIXING STRUCTURE OF FLAT PLATE MATERIAL
HEATING APPARATUS
CIRCUIT BOARD AND CONNECTING METHOD
SEMICONDUCTOR OPTICAL ELEMENT
ELECTRODE OF SEMICONDUCTOR DEVICE, AND FORMING METHOD FOR THE ELECTRODE
BUMP ELECTRODE, ITS MANUFACTURING METHOD, AND ELECTRONIC COMPONENT INSPECTION APPARATUS
ORGANIC ELECTROLUMINESCENT ELEMENT
BRUSH