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
STABLE SQUARE-WAVE FREQUENCY GENERATOR USING TWO OPERATIONAL AMPLIFIERS WITH FEEDBACK
摘要
申请公布号
US3564455(A)
申请公布日期
1971.02.16
申请号
USD3564455
申请日期
1969.07.24
申请人
NAVY USA
发明人
JOHN O. WEDEL
分类号
H03K3/0231;(IPC1-7):H03B5/20
主分类号
H03K3/0231
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Device for guiding vehicle exhaust gases
Connection
Subglobal addressing of electronic shelf labels
BIB HAVING IMPROVED POCKET OPENING
PROCESS AND COMPOSITIONS PROMOTING BIOLOGICAL EFFECTIVENESS OF EXOGENOUS CHEMICAL SUBSTANCES IN PLANTS
Air conditioning apparatus usable for wide-range source voltage
Insect neuropeptides
Process for upgrading a hydrocarbonaceous feedstock
COVER FOR A CUSHION
Multicomponent optical device
Transaction system with modular printer
PITCH ADJUSTMENT ASSEMBLY FOR BEARINGLESS MAIN ROTORS
Improvements in and relating to pipe joints
DEVICE FOR REMOVING HAIR FROM THE HUMAN BODY
Rolling storage rack
Multi-tube heat exchanger
Optical information recording medium, optical information recording method, and optical information reproducing apparatus using the same
Lock detection connector
Process and apparatus for renovating damaged roadways
Ventil und Verfahren zur Herstellung eines Ventilsitzes für ein Ventil
