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
Electron discharge device
摘要
申请公布号
US2141378(A)
申请公布日期
1938.12.27
申请号
US19340750928
申请日期
1934.11.01
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
CLARK JAMES E.;RONCI VICTOR L.
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BAUELEMENT SOWIE VERFAHREN ZU DESSEN HERSTELLUNG.
AUF RAEUMMASSNAHMEN UND NATUERLICHE EREIGNISSE UNEMPFINDLICH REAGIERENDE MINE
VERFAHREN ZUR ERFASSUNG DES SAUERSTOFFPARTIALDRUCKES.
ALUMINIUMNITRID-SINTERKERAMIKKOERPER MIT HOHER WAERMELEITFAEHIGKEIT.
CARBON BLACK HAVING A HIGH SPECIFIC SURFACE AREA
PROCESS AND APPARATUS FOR THE PRODUCTION OF GRANULES
HIGH COMPRESSIBILITY GASKET MATERIAL AND METHOD OF MAKING THE SAME
CATALYSTE CONTAINING MIXED OXIDES OF VANADIUM AND PHOSPHORUS
ELEVATOR DIAGNOSTIC MONITORING APPARATUS
PUTTER
ETHYLENE/PROPYLENE/ETHYLIDENE NORBORNENE RUBBERS
DEVICE AND METHOD FOR COLLECTING FECAL OCCULT BLOOD SPECIMENS
MACCHINA PER LA FABBRICAZIONE DI GELATO DI TIPO SOFT
METHOD OF REMOVING MERCURY FROM HYDROCARBON OILS
SKYDDSRUM FOER MAENNISKOR OCH UTRUSTNINGAR
PROCESS FOR SEPARATING VOLATILE COMPONENTS FROM REACTION MIXTURES OBTAINED THROUGH HIGH-PRESSURE POLYMERISATION
ROLLER WEEDER
TAVOLO ALLUNGABILE
THERMOPLASTISCHE FORMMASSEN AUF DER BASIS VON POLYOXYMETHYLEN UND POLYAMID
A METHOD OF CONTROLLING THE QUALITY OF DOUGH DURING ITS PROCESSING
