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
OPTICAL SECURITY DEVICE
摘要
申请公布号
EP0497837(B1)
申请公布日期
1997.06.11
申请号
EP19900915964
申请日期
1990.10.19
申请人
DE LA RUE HOLOGRAPHICS LIMITED
发明人
CHATWIN, CHARLES, EDWARD;KAY, RALPH;GOMME, MARTIN, CHRISTOPHER;EZRA, DAVID
分类号
G06K19/02;(IPC1-7):G06K19/02
主分类号
G06K19/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
SIGNAL DECODING DEVICE
CHARGING-SYSTEM TRANSMISSION SYSTEM OF MOBILE COMMUNICATION SYSTEM
2-(HALOGENOMETHYL-PHENYL)-4-HALOGENO-OXAZOLE DERIVATIVE, MANUFACTURE AND RADIATION-SENSITIVE COMPOSITION CONTAINING SAME
5,6,7-TRINOR-4,8-INTER-M-PHENYLENE PGI2 DERIVATIVE
MANUFACTURE OF STRIPE FILTER SURFACE PLATE
2-CYLINDER TYPE PUMP FOR STICKY MATERIAL
COOLER FOR EXPANDED PLASTIC MOLDING
COMMUNICATION CONTROLLER
IGNITION TIMING CONTROLLER FOR ENGINE
AMPLIFYING CIRCUIT
IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINE
PISTON
METHOD AND APPARATUS FOR CONFIRMING FALL OF MOLDED PRODUCT FROM DIE IN INJECTION MOLDING MACHINE
MANUFACTURE OF SOLID IMAGE PICKUP DEVICE
BLEND OF NITRILE RESIN AND HYDROPHOBIC NYLON
WATER INK FOR INK JET RECORDING
MANUFACTURE OF ISOCYANATE
REMOVAL OF LIGHT COMPONENT FROM PETROLEUM FRACTION
CHOLESTERIC LIQUID CRYSTAL BLEND
ORAL ACTIVATED CARBON MICROCAPSULE
