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
Phonographic apparatus
摘要
申请公布号
US2031858(A)
申请公布日期
1936.02.25
申请号
US19340752235
申请日期
1934.11.09
申请人
RADIO CORPORATION OF AMERICA
发明人
SACHTLEBEN LAWRENCE T.
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
METHOD OF MANUFACTURING CERAMIC FILTER
PROCESS FOR THE PREPARATION OF GLASS SHEETS
GAS DRYING CYCLE OF DESICCANT REGENERATION METHOD
METHOD OF MAKING COATING PERFORATED PAPER FOR CIGAR THREEFOLD FILTER
METHOD OF PREPARING POLYECTER FIBER HAVING DEFFERENT SHRINKAGE YARN
Semiconductor acceleration sensor and testing method thereof
Anti-glare screen for lighting units
Fremgangsmåte og apparat for tilveiebringelse av stort sett konstant luftström gjennom döråpningen til et avtrekk
Golf Putter with Face Plate Insert
Bleking av kjemisk masse
Overlastsikring for plogås
Emulsion of viscous hydrocarbon in aqueous buffer solution and method for preparing same
A method for the direct presentation of differential gas concentration measurements
Fremgangsmåte ved en datamaskinstyrt svitsjeinnretning, spesielt ved en såkalt KEY-telefonsvitsjeinnretning
Maskin for fylling av kjött i hylster
A novel vector to produce biologically important peptides
Apparatus for changing work holder in transfer press
Ventilation vavle
Adhesive transfer device
HYDROCARBON CONVERSION PROCESSES AND CATALYSTS USED THEREIN.