Hand and wrist supports for keyboard operators
申请公布号：GB2249053(A)
申请号：GB19900023417
申请日期：1990.10.27
申请公布日期：1992.04.29
发明人：EYAL * LEDERMAN
分类号：A47B21/03
主分类号：A47B21/03
PECTINATE PORTION FOR CONNECTING POSITIVE PLATE OF SEMICONDUCTOR ELEMENT
SEMICONDUCTOR DEVICE
DIAPHRAGM FOR ELECTRON BEAM EXPOSURE APPARATUS
M BITS X N BITS MULTIPLIER
CATERPILLAR GUIDE SYSTEM FOR CRAWLER VEHICLE
METHOD AND APPARATUS FOR ELECTRICAL TESTING OF MULTIICORE CABLE
TROUGH BRIDGE CONTACTOR
