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
Telephone system
摘要
申请公布号
US1838586(A)
申请公布日期
1931.12.29
申请号
US19290404358
申请日期
1929.11.02
申请人
BUROVOX, LIMITED
发明人
WINFIELD-SMITH STEPHEN CHRISTOPHER
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DIGITAL COMPOSITE APPARATUS, RECORDING MEDIUM, AND PRINTING SYSTEM
METHOD FOR MANUFACTURING RESIN MOLDED PRODUCT
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
INFORMATION PROCESSING DEVICE AND METHOD, PROGRAM AND RECORDING MEDIUM
OPERATION CONTROL DEVICE FOR ELECTRONIC KEY SYSTEM
MANUFACTURING METHOD OF PIEZOELECTRIC ACTUATOR
INTEGRATED ELEMENT AND ITS MANUFACTURING METHOD
TRANSMISSION/RECEPTION OF RASTER/IMAGE DATA USING MULTIFUNCTIONAL PRODUCT
PSEUDODIFFERENTIELLER STROMGESTEUERTER LESEVERSTÄRKER MIT HYSTERESE
Endoskop
Initiatorsystem für saure Dentalformulierungen
Imidazopyridines containing combinations and their use in treating gastrointestinal inflammatory disorders
Neue N-(Benzolsulfonyl)-L-prolin-Verbindungen, Verfahren zu ihrer Herstellung und therapeutische Verwendung
Selektive Thrombin-Hemmer
DISPOSITIVO DI PROTEZIONE DI UNA RUOTA FONICA IN UN CUSCINETTO
SURGICAL DRAIN WITH SENSORS FOR MONITORING INTERNAL TISSUE CONDITION AND FOR MONITORING FLUID IN LUMEN
Reduction of hair growth
Self-aligning cap nut for use with a spinal rod anchor
Integrated optics probe for spectral analysis
Cotton event MON 88913 and compositions and methods for detection thereof
