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
Alternating-current operated relay distributor
摘要
申请公布号
US2744215(A)
申请公布日期
1956.05.01
申请号
US19520274962
申请日期
1952.03.05
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HILL HENRY E.;PARKINSON DAVID B.
分类号
H04M1/272
主分类号
H04M1/272
代理机构
代理人
主权项
地址
您可能感兴趣的专利
CONTENEDOR RETORNABLE PARA PRODUCTOS
DOWNHOLE MEASUREMENTS DURING NON-DRILLING OPERATIONS
BONE REPAIR PUTTY COMPRISING POROUS PARTICULATE AND CARRIER GEL
METHOD FOR COLORING BUILDING MATERIALS USING A CATIONIC PIGMENT DISPERSION
Menetelmä ja laite kuitususpensioiden lajittelemiseksi
PROCEDIMIENTO Y SISTEMA PARA EJECUCION SEGURA DE CONTENIDO DE POCA CONFIANZA.
DENTAL ADHESIVE COMPOSITION
Jäteveden esikäsittelyvälppä
METHOD FOR MEASURING DOPANT CONCENTRATION DURING PLASMA ION IMPLANTATION
METHOD AND SYSTEM FOR SORTING MAIL
VACUUM PUMP
HIGH-PRESSURE FORMING PROCESS FOR TOBACCO MATERIAL
SWITCHGEAR CONTROL APPARATUS
REAMING AND STABILISATION TOOL FOR USE IN A BOREHOLE
MANUFACTURING METHOD OF RADIOACTIVE MOLYBDENUM, MANUFACTURING APPARATUS AND RADIOACTIVE MOLYBDENUM MANUFACTURED THEREBY
DEVICE AND METHOD FOR PROFILING TREE TRUNKS
HIGH STRENGTH PART AND METHOD OF PRODUCTION OF THE SAME
CLAMP FOR A RAIL TRANSDUCER
NUCLEIC ACID ISOLATION METHOD AND KIT
SLIDING TAIL VISE
