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
Wave analyzer for determining fundamental frequency of a complex wave
摘要
申请公布号
US2593694(A)
申请公布日期
1952.04.22
申请号
US19480017204
申请日期
1948.03.26
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
PETERSON EUGENE
分类号
G10L25/93
主分类号
G10L25/93
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Fixed film process for the treatment of waste water utilizing interfacial oxygen transfer
Method in the operation of a firing plant, and a firing plant for performing the method
Self deodorizing ash tray
Electrical therapeutic apparatus
DISPLAY BOTH FOR ALPHAMETRIC AND NUMBER
Process and apparatus for reduction of alcohol by dialysis in fermented beverages
Electrosurgical apparatus
TREATER FOR RADIOACTIVE WASTE LIQUOR
LOW/HIGH TEMPERATURE HANDLER EMPLOYING ELECTRONIC COOLER
VEHICLE INSTRUMENT
DETECTOR FOR SPATIAL UNEVEN QUALITY IN DIELECTRIC
PRODUCTION OF SILICON NITRIDE HAVING HIGH PURITY USING SILICON CHIP AS RAW MATERIAL
PROCESS AND APPARATUS FOR PREPARING ALUMINUM NITRIDE POWDER
MANUFACTURE OF ADHESIVE APPLIED LAMINATED BOARD
METHOD FOR REPRODUCING BLACK STAIN ON COATED SURFACE
NEEDLE ROD DRIVER IN SEWING MACHINE
HEARING MEASURING VEHICLE WITH SOUND ARRESTOR
ELECTRONIC PART CONTAINING CARTRIDGE
FIELD EFFECT SEMICONDUCTOR DEVICE
INTEGRATED CITCUIT RESISTANCE VOLTAGE DIVIDER
