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
US1797935(A)
申请公布日期
1931.03.24
申请号
US19290371393
申请日期
1929.06.17
申请人
KELLOGG SWITCHBOARD AND SUPPLY COMPANY
发明人
WALLACE BERT
分类号
H04M5/10
主分类号
H04M5/10
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Reinforced plastic sleeve for pneumatic nailer
Closure assembly for a container
Paint tray accessory and assembly
Closure cap for a fluid container and method for the fabrication
Spill inhibitors for containers
Counterweighted container latch
Closure having improved performance
Water-proof sound-transmitting membrane, method for producing water-proof sound-transmitting membrane, and electrical appliance using the membrane
Vacuum transport belts
Piece of luggage with zipper
Device for processing clips, screws, pins, nuts or similar joining elements
Buckle
Headset cord holder
Hinge for a portable computing device
Aeroacoustic duster
Covers for paint rollers
Autonomous cleaning machine
Portable ramp assembly
Interleaving apparatus and method for orthogonal frequency division multiplexing transmitter
Light set arrangement
