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
METHOD OF MAKING THERMIONIC CATHODES
摘要
申请公布号
US3534455(A)
申请公布日期
1970.10.20
申请号
USD3534455
申请日期
1968.05.03
申请人
ARMY USA
发明人
RALPH J. BONDLEY
分类号
H01J9/04;(IPC1-7):H01J9/00
主分类号
H01J9/04
代理机构
代理人
主权项
地址
您可能感兴趣的专利
VACUUM ARC DEPOSITION DEVICE AND VACUUM ARC DEPOSITION METHOD
HONEYCOMB FILTER
METHOD FOR PRODUCING CONNECTION STRUCTURE
DEVICE FOR SUPPLYING HIGHLY CARBONATED BEVERAGE
CONTINUOUS MAGNETIC PULSE GENERATOR
THREE-DIMENSIONAL SCREEN STRUCTURE AND THREE-DIMENSIONAL IMAGE GENERATION SYSTEM
RADICAL GAS GENERATION SYSTEM
PISTON AND DAMPER
BLIND SPOT ASSIST DEVICE
BLIND RIVET AND METHOD FOR FASTENING SAME
COOLING DEVICE
COMBINE
FIN-AND-TUBE TYPE HEAT EXCHANGER, AND HOT WATER SUPPLY DEVICE EQUIPPED WITH SAME
CIRCUIT STRUCTURE
BALLOON CATHETER
COOLING STRUCTURE FOR CONTINUOUSLY VARIABLE TRANSMISSION
MEDIUM PROCESSING DEVICE AND MEDIUM TRANSACTION DEVICE
COMPRESSOR AND REFRIGERATION CYCLE DEVICE
DUAL-TYPE WAVE GEAR DEVICE
DEVICE
