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
Thermionic valve oscillator arrangement
摘要
申请公布号
US2155649(A)
申请公布日期
1939.04.25
申请号
US19360060786
申请日期
1936.01.25
申请人
RADIO CORPORATION OF AMERICA
发明人
GEORGE DOUGLAS FRANK
分类号
H04B1/04
主分类号
H04B1/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
ELECTRIC OPERATION VALVE
GAS INTAKE*EXHAUST ADJUSTING DEVICE
TAKEEOUT DEVICE OF PRODUCT AT TOWER BOTTOM IN MASS EXCHANGING TOWER
REPAIR OF URETHANE MOLDED ARTICLE SURFACE
MANUFACTURE OF PERFUMING LUMINOUS STAMEN
WOUND DRESSING
INTERIOR GAUGE FOR MEASURING THE DIAMETER OF BORES OF MACHINED WORKPIECE
POWER TRAIN FOR AUXILIARY/MARINE VESSELS
CHARGING AND EXPOSING METHOD
COAGULATION AND SEDIMENTATION TREATMENT OF WASTE WATER OF PULP MILL
ELECTROPHOTOGRAPHIC RECEPTOR
FILM FOR PRINT LAMINATE
TONER CLEANING DEVICE
HANDY COPYING MACHINE
WET TYPE DEVELOPING DEVICE
MATERIAL FOR OFFSET MASTER
PHOTOSENSITIVE HEAT RESISTANT POLYMER COMPOSITION
HIGH SPEED ELECTROMAGNETIC SHUTTER
DOWNWARD BACKET TYPE STEAM TRAP
BEARING STRUCTURE FOR DAMPER
