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
Improvements in or relating to telephone systems
摘要
申请公布号
GB339784(A)
申请公布日期
1930.12.18
申请号
GB19290037370
申请日期
1929.12.05
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
LENS BARREL, AND IMAGING APPARATUS
REMOTE INTERFACE CHECK DEVICE AND REMOTE INTERFACE CHECK METHOD
ELECTROCHROMIC DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR DRIVING THE SAME
RECORDING MEDIUM DISCRIMINATION DEVICE AND IMAGE FORMING APPARATUS
CAMERA SUPPORT TOOL FOR PREVENTION OF HAND SHAKE
IMAGING DEVICE
HARVESTER
SEEDLING HOUSE
BUILDING
ELECTRONIC TICKET SYSTEM AND ELECTRONIC COMMERCIAL TRANSACTION METHOD USING THE SAME
COLLATERAL VOLUNTARY SELL-OUT MANAGEMENT PROGRAM AND COLLATERAL VOLUNTARY SELL-OUT MANAGEMENT SYSTEM
ORDER SUPPORT SYSTEM
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
MOUNTING STRUCTURE
NUCLEIC ACID SPECIFICALLY BINDING TO NON-SMALL CELL LUNG CANCER
ARC-WELDING DEVICE, ELECTRICAL EQUIPMENT, MOTOR UNIT, AND MOTOR REPLACEMENT METHOD FOR ELECTRICAL EQUIPMENT
LIGHT-EMITTING DEVICE
ELECTRONIC CLOCK
ANTI-LIPID OXIDIZING AGENT, LIPOLYTIC ENZYME ACTIVITY INHIBITOR, SUGAR DEGRADING ENZYME ACTIVITY INHIBITOR, COLORING AGENT AND HEALTH FOOD
バンプ付き拡張器先端部