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
Improvements in keying arrangements for radio and like systems
摘要
申请公布号
GB540888(A)
申请公布日期
1941.11.04
申请号
GB19400006057
申请日期
1940.04.03
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY, LIMITED;VICTOR JAMES COOPER
发明人
分类号
H04L27/04
主分类号
H04L27/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Durchflussregelventil
ANTIMIKROBIELLER ABSORBIERENDER ARTIKEL UND VERFAHREN ZU SEINER HERSTELLUNG UND VERWENDUNG
Floor covering made of an elastomer material used e.g. in public buildings has a structured surface with non-uniformly distributed, partly overlapping rectangular or square protrusions
Breech for a repeating rifle comprises a chamber containing an exchangeable locking head and a locking mechanism released by a clamping device for holding the locking head on a bushing
Controlling transistor involves setting latch to a defined state, lowering potential on second node, lowering potential on first node if potential difference between nodes exceeds defined level
Device for filling a hydraulic vertebra traction device with a hydraulic medium comprises a cylinder with a feed line, a piston, and gripping elements displacing the piston in the cylinder when they are manually moved toward each other
System for investigating inshore water bodies comprises at least one unmanned floating element and at least one unmanned submerged element, and a base station with remote control and data processing means
Micro controller based bus system is used in rooms and buildings for operation of services such as heating and lighting
Avroutski's shaft gearbox for propulsion of devices and systems with high transmission capability, has star chain wheel with internal teeth fastened to case and connected to driven chain wheel by roller chain
Noise suppression method for suppressing noise in the auditory apparatus of a human or animal undergoing dental treatment, whereby noise is detected and compensation ultrasound waves applied to the auditory apparatus
Polyamide molding composition, useful for the production of molded articles, film, fiber or foam, is prepared by first preparing a graft copolymer by mixing a rubber-free copolymer with a portion of the polyamide
Conversion of aqueous nanoparticle dispersions to organic dispersion comprises treatment with silylation reagents to modify the nanoparticle surfaces
Collector for using earth's temperature for heating/cooling, has collector line at level of lower third of foil trough/channel, filler consisting of material forming bearing layer
Arrangement for converting wave energy to electrical energy has energy converter in at least one connected chamber; connected chambers and connecting line system are partly filled with working liquid
Railway wagon shifting involves underground wagon of arrangement for changing wheel sets displacing railway wagon along rail using prismatic holding arrangement
Decontamination of organochlorine biocide-contaminated objects involves use of a plant-based terpene as fat releaser and a nonionic ethoxylated sorbitan ester as surfactant
Inliner bag for containers of fruit juice etc has vent system with sterile filter and release valve on sealing pipe on upward facing wall of flexible plastics foil bag
Cardboard drum used for holding toilet tissue or kitchen towels, filled with interesting article for promotion purposes
Seat connecting structure to be attached to bottom of vehicle if third seat row is to be added
Determining oxygen content in non-combustible gases from combustion installation involves removing test gas, feeding to electrode of solid electrolyte, and correcting according to changes in temperature and/or pressure