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
CALL TRANSFER SYSTEM
摘要
申请公布号
US3624307(A)
申请公布日期
1971.11.30
申请号
USD3624307
申请日期
1970.01.13
申请人
BELL TELEPHONE LABORATORIES INC.
发明人
MICHAEL FRANK SIKORSKY;HERMAN EWALD VOIGT
分类号
H04M3/60;H04Q3/545;(IPC1-7):H04M3/42;H04M3/58
主分类号
H04M3/60
代理机构
代理人
主权项
地址
您可能感兴趣的专利
TRANSMISSION SHAFT HAVING CENTRIFUGAL DEVICE AND TRANSMISSION METHOD THEREOF
SYSTEM AND METHOD FOR IMPROVING THE GRAPHICS PERFORMANCE OF HOSTED APPLICATIONS
SECURITY CABLE MONITORING SYSTEM
NON-LETHAL PROJECTILE
Methods for Electrochemically Induced Cathodic Deposition of Crystalline Metal-Organic Frameworks
POLICY PROXY
CABLE ASSEMBLY WITH AN IMPROVED DUSTPROOF LID
MEMORY CELL OPERATION
UNMANNED VEHICLE CIVIL COMMUNICATIONS SYSTEMS AND METHODS
PROJECTOR AND REFLECTOR THEREOF
MOBILE COMMUNICATION SYSTEM
Advanced wireless IPTV set top box
METHOD AND APPARATUS FOR EDITING TEXT USING MULTIPLE SELECTION AND MULTIPLE PASTE
INTEGRATED MEDIA BROWSE AND INSERTION
SEMICONDUCTOR MEMORY DEVICE AND METHOD OF CONTROLLING THE SAME
METHOD AND SYSTEM FOR REPRESENTING WELLS IN MODELING A PHYSICAL FLUID RESERVOIR
DEVICE FOR REMOVING A FLUID FROM A VIAL
INSERT FOR THE INFUSION OF DRUGS
NON-INVASIVE DETECTION OF FETAL GENETIC TRAITS
DENTAL RESTORATIVE MATERIAL
