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
Hand held message board with changeable message cards
摘要
申请公布号
USD263972(S1)
申请公布日期
1982.04.20
申请号
US05/920224
申请日期
1978.06.28
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ARTICLE COUNTING DEVICE
MULTICHANNEL DEVICE FOR SOLVING INTEGRAL EQUATIONS
REVERSIBLE COORDINATE CONVERTER
10-DIGIT SINE-COSINE CONVERTER
DEVICE FOR DETERMINING INDICATED POWER OF PISTON MACHINES
MULTICHANNEL PRIORITY DEVICE
PROGRAMME-TIME DEVICE
DEVICE FOR INTERFACING DIGITAL COMPUTING MACHINE WITH PERIPHERAL UNITS
WLYWHEEL FOR CREATING AND REGISTERING FORCES ON DRIVEN SHAFT
INDUCTION APPARATUS
SQUARE ROOTING DEVICE
DEVICE FOR COMPUTING RELATIVE DIFFERENCE OF TWO DC VOLTAGES
SUBTRACTING DEVICE
DC VOLTAGE STABILIZER
FOLLOW-UP DRIVE
PANORAMIC PHOTOCAMERA
RADIO SIGNAL FREQUENCY METER
ACTIVE CURRENT SENSOR
DEVICE FOR MEASURING MOTION VELOCITY OF RAILWAY VEHICLE
AUTOMATIC METER OF REFLECTION COEFFICIENT OF ACOUSTIC SIGNALS FROM PIEZOTRANSDUCER
