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
Printing telegraph exchange system
摘要
申请公布号
US1951916(A)
申请公布日期
1934.03.20
申请号
US19320647179
申请日期
1932.12.14
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
LANE CUTHBERT C.
分类号
H04L12/12
主分类号
H04L12/12
代理机构
代理人
主权项
地址
您可能感兴趣的专利
INORGANIC TITANUIM COATING OF GLASS
INDUCTION OF SPECIFIC BRAIN WAVE PATTERNS
AUTOMATIC SEALING SWING MECHANISM
VIDEO TRANSMISSION GHOST CANCELLING CIRCUIT
VIBRATORY FEEDER WITH SIFTING SECTION
ELECTRIC FUSE AND METHOD
7-HALO-3,20-DIOXO-1,4-PREGNADIENES AND -4- PREGNENES AND THEIR PREPARATION
DIPOTASSIUM PENTAPROPIONATE AND METHOD OF PREPARATION
PACEMAKER
REMOVABLE WALLS
HAND HELD LABELER
REMOVING PLAQUE FROM TEETH
METHOD OF LEACHING SULFIDE COPPER ORES
ROTARY CYLINDER TYPE DRYING STORING DEVICE
ELEKTRISCHE LEITERPLATTE
REUSABLE FOLDABLE CONTAINER FOR BICYCLES
BRAENDERARRANGEMENT
FLERNOTFORBINDELSE MELLEM TO TIL DREJEMEDTAGELSE KOBLEDE DELE
VAGINAL PREPARATION HAVING LH-RH ACTIVITY
PVC LUBRICANT COMPOSITION