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
Signaling system
摘要
申请公布号
US1955875(A)
申请公布日期
1934.04.24
申请号
US19320637649
申请日期
1932.10.13
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
DEMAREST CHARLES S.
分类号
H04Q1/30
主分类号
H04Q1/30
代理机构
代理人
主权项
地址
您可能感兴趣的专利
GAME SYSTEM, AND MATCHING METHOD FOR NETWORK GAME
GAME SYSTEM
IMPROVED NOX TRAP
SYSTEMS AND METHODS FOR MANAGING PRESSURE IN A WELLBORE
METHOD FOR HANDLING A TELECOMMUNICATIONS CONNECTION, TELECOMMUNICATIONS ARRANGEMENT, SWITCHING DEVICE AND NETWORK COUPLING DEVICE
APPARATUS FOR CENTRIFUGATION AND METHODS THEREFORE
INKJET PRINTING METHOD, AND INKJET PRINTING DEVICE
SYSTEM AND METHOD FOR THE PREPARATION OF COOLED EDIBLE PRODUCTS
EXHAUST GAS RECIRCULATION SYSTEM
METHOD FOR SETTING UP HIGH-SPEED LINK IN WLAN SYSTEM AND APPARATUS FOR SAME
SELECTIVELY CORRODIBLE DOWNHOLE ARTICLE AND METHOD OF USE
CONVEYANCE DEVICE AND CONVEYANCE METHOD
CHARGE ORDERED VERTICAL TRANSISTORS
METHOD AND APPARATUS FOR IMPROVED HANDLING OF IMS NODE BLACKLISTING
METHOD FOR PRODUCING LOW-TEMPERATURE CEMENT CLINKER BY USING STRAW ASH
POLYAMIDE FABRIC ENHANCING BODY WARMING
Verfahren zum temporären Verbinden eines Produktsubstrats mit einem Trägersubstrat
APPARATUS AND METHOD FOR PROTECTING DEVICES DOWNHOLE
A METHOD OF A WEB BASED PRODUCT CRAWLER FOR PRODUCTS OFFERING
FABRICATION METHOD OF PENTALAYER POLYOLEFIN STRETCH FILM
