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
Telegraph exchange system
摘要
申请公布号
US2114023(A)
申请公布日期
1938.04.12
申请号
US19350038503
申请日期
1935.08.30
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
KINKEAD FULLERTON S.
分类号
H04L12/12
主分类号
H04L12/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
FORMING METHOD OF LIQUID CRYSTAL ORIENTATION FILM
Method of making extruded plastic members
Semiconductor device having an organic resin layer and silicon oxide layer containing fluorine for preventing crosstalk between metal lines and a method of manufacturing the same
Modular microprocessor-based diagnostic measurement apparatus and method for psychological conditions
COMPOSITE HEAT EXCHANGER FOR AUTOMOBILE AND MANUFACTURE THEREOF
System and method for securing computer-executable program code using task gates
Water evaporation apparatus
Quick cooling air conditioning system
Thermal printhead, substrate for the same and method for making the substrate
Air bag device
Power IC having high-side and low-side switches in an SOI structure
Phase synchronous circuit
ALKALI DEVELOPING TYPE PHOTO-CURING CONDUCTIVE PASTE COMPOSITION AND PLASMA DISPLAY PANEL HAVING ELECTRODE FORMED BY USING THEREWITH
Methods for preserving fresh fruit and product thereof
Stirring rod with flexible extensions for mixing materials
Slide puck adjustable bearing system
Aircraft electrical power system including air conditioning system generator
Static memory cell
Coronary endoprothesis such as a stent
Processor having an instruction set architecture implemented with hierarchically organized primitive operations
