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
Abacus
摘要
申请公布号
US2530447(A)
申请公布日期
1950.11.21
申请号
US19480006399
申请日期
1948.02.05
申请人
BIRDSALL IDA E
发明人
BIRDSALL IDA E.
分类号
G09B19/02
主分类号
G09B19/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
PROCESS FOR THE PREPARATION OF VINYL ACETATE
NON-ALCOHOLIC DELIVERY SYSTEM ORALLY INGESTIBLE ACTIVE INGREDIENTS
CHILD EXERCISE DEVICE
ZINC OXIDE VARISTOR, MANUFACTURE THEREOF, AND CRYSTALLIZED GLASS COMPOSITION FOR COATING
INK JET RECORDING HEAD, CARTRIDGE AND APPARATUS
EVAPORATION CARBURETTOR FOR AN INTERNAL COMBUSTION ENGINE
MICROMAGNETIC CIRCUIT
CABLE DUCTING
BRACED WALL STRUCTURE AND METHOD OF FORMING IT
IMPROVED ELECTROCATALYTIC COATING
SOLID STATE SCANNING TRANSDUCER THAT UTILIZES LOW FLUX DENSITIES
CONNECTOR FOR USE WITH METAL CLAD CABLE
CHLORINE-DOPED OPTICAL COMPONENT
COMBINATION ICE AND CHILLED BEVERAGE DISPENSER
SYSTEM OF COMBINED DIGITAL PHOTOGRAPHIES
DEVICE FOR CONCEALING OBJECTS IN MOTOR VEHICLES
METHOD FOR EXCAVATING ROCK CAVITIES
POLYPHASE MACHINE FED BY A PULSE-CONTROLLED A.C. CONVERTER
PAGE PRINTER WITH MACHINE-READABLE-CHARACTER-BASED CONTROLS
APPARAT TIL UNDERSTOETNING AF ET MOTORKOERETOEJ VED MAALING AF HJULOPHAENGETS GEOMETRI
