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
Variable area, push-pull sound recording system
摘要
申请公布号
US2511199(A)
申请公布日期
1950.06.13
申请号
US19470745147
申请日期
1947.05.01
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
FRAYNE JOHN G.
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
MOLDING METHOD FOR SINTERED PARTS HAVING TRANSVERSE HOLE
FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE
3-CYLINDER INTERNAL COMBUSTION ENGINE
FUEL INJECTION CONTROLLER OF INTERNAL COMBUSTION ENGINE
AUTOMATIC WAVEFORM EQUALIZER FOR TELEVISION SIGNAL
FLUORESCENT SUBSTANCE OF ALKALINE EARTH SULFIDE
WATER-SOLUBLE PRESSURE-SENSITIVE ADHESIVE
PREPARATION OF SLURRY OF COAL AND WATER
HARDENABLE POLYMER COMPOSITION CONTAINING NATURAL RUBBER OR SYNTHETIC RUBBER
PURIFICATION OF POOL
WAVE PULSE TYPE SORTING APPARATUS
APPARATUS FOR DEHYDRATING RAW LAVER
GARMENT DRYING AND FINISHING DEVICE
AEROSOL SPRAY
YARN CUTTER OF SEWING MACHINE
BED APPARATUS
X-RAY PHOTOGRAPHING APPARATUS
ELECTRIC WASHER INCLUDING RESIN CONSTITUTIONAL PARTS
STITCH SEWING ATTACHMENT OF SEWING MACHINE
SUCTION PORT FOR FLOOR IN ELECTRIC CLEANER
