Means for preventing aging effects in piezoelectric crystals,申请号US19530357975-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	Means for preventing aging effects in piezoelectric crystals
摘要
申请公布号	US2727296(A)	申请公布日期	1955.12.20
申请号	US19530357975	申请日期	1953.05.28
申请人	COLLINS RADIO COMPANY	发明人	CRAIGLOW ROBERT L.
分类号	H03H9/10	主分类号	H03H9/10
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Fail-safe microprocessor-based control and monitoring of electrical devices

Method and apparatus for detecting isolation faults in motor/inverter systems

Chip-type electronic component having external electrodes that are spaced at predetermined distances from side surfaces of a ceramic substrate

Use of low-molecular-weight heparins for the prevention and treatment of trauma of the central nervous system

Product capable of transforming a toxic, corrosive or environmentally harmful liquid product into a harmless or non-aggressive residue

Metallizing process of semiconductor industry

Semiconductor device and method of manufacturing the same

Flash memory device and method of making same

Positive photoresist composition and process for forming resist pattern using same

Coating method of amorphous type titanium peroxide

Liquid composition used for dissolving fingernail polishes

Lubricated refrigerant composition containing fluorocarbon-type refrigerant, synthetic oil and molybdenumoxysulfide derivatives

Noninvasive apparatus and method for the determination of cardiac valve function

Electrical connector system

Nozzle arrangement for an ink jet printhead incorporating a linear spring mechanism

Methods of projecting images

Multi-function control valve for hydraulic coupling

Engine operated machine

Pressurized fluid recovery/reutilization system

Wafer level stack package and method of fabricating the same