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 feeding circuit for piezoelectric transducer
摘要
申请公布号
US2740906(A)
申请公布日期
1956.04.03
申请号
US19510213410
申请日期
1951.03.01
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
NEWMAN EDWARD ARTHUR;CLAYDEN DAVID OSWALD
分类号
H03H9/30
主分类号
H03H9/30
代理机构
代理人
主权项
地址
您可能感兴趣的专利
TAXI SALES SETTLING APPARATUS
DEVICE FOR DROPPING PRINTING HEAD
IV B GROUP METAL QUICK REACTIVE SPUTTERING
REFRIGERATION CYCLE OF AIR CONDITIONER
COIN THROWER
SOLAR HEAT PUMP AIR CONDITIONER
PRICE SETTING APPARATUS FOR VENDING MACHINE
STEAM SEPARATING REHEATER AND METHOD OF CONTROLLING SAID STEAM SEPARATING REHEATER
ECHANGEUR DE CHALEUR EN MATIERES THERMOPLASTIQUES FLUOREES
레이저 핵오염 제거방법
방사성 폐수의 고화처리법
열교환기관 검사장치
액체 연료의 연소장치
북이 없는 직기의 씨실 반송 그리퍼 운동 제어장치
가스 방전등용 스타터 회로
해수 탈염 장치 및 방법
SURFACE TREATMENT OF ALUMINUM OR ALUMINUM ALLOY
SYSTEM FREQUENCY SYNCHRONIZATION TRANSMISSION SYSTEM
MANUFACTURE OF FLOOR MATERIAL
ALUMINUM PLATE FOR HEAT EXCHANGER FIN