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
Wavelength selective mode couplers
摘要
申请公布号
US4974931(A)
申请公布日期
1990.12.04
申请号
US19890435849
申请日期
1989.11.13
申请人
AT&T BELL LABORATORIES
发明人
POOLE, CRAIG D.
分类号
G02B6/02;G02B6/14;G02B6/34
主分类号
G02B6/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD OF MANUFACTURING MULTI-LAYER CORRUGATED CARDBOARD
DISCHARGE CURRENT MEASURING CIRCUIT OF PDP
IMPROVED TUNER OF SATELLITE RECEIVER
CLOCK GENERATING APPARATUS
DISTANCE MEASUREMENT APPARATUS
DEVICE AND METHOD FOR AUTOMATIC RESERVED RECORDING
DATA SEGMENT SYNC. DETECTION CIRCUIT OF HDTV SYSTEM
HUB TYPE OPTICAL DISK AND INJECTION MOLDING DIE FOR MOLDING ITS DISK SUBSTRATE
PROCESS FOR TRACK FOLLOWING IN MAGNETIC TAPE RECORDERS
LOADING APPARATUS OF OPTICAL DISK PLAYER
THE THREE DIMENTION DISPLAY APPARATUS
PROCESS FOR PREPARING FULL-DULL POLYESTER RESIN
OPTICAL MAGNETIC RECORDING MATTER
METHOD AND DEVICE FOR REMOVING NOISE BAR OF VTR
PIEZO RESONATOR
MISLOADING PROTECTION DEVICE OF MINI DISC
GROUTING METHOD
A BASE STRUCTURE FOR A BED
ELECTRICAL DISCHARGE HEAD FOR ELECTRICAL DISCHARGE MACHINING
TELEVISION WITH DISCRIMINATION OF SOUND MODES
