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
Variable bandwidth transmission system
摘要
申请公布号
US2763840(A)
申请公布日期
1956.09.18
申请号
US19520326753
申请日期
1952.12.18
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
PFLEGER KENNETH W.
分类号
H03G5/18
主分类号
H03G5/18
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Device and method for recording video signal
Cab for construction machinery
System for providing localized content information via wireless personal communication devices
Novel H-rev107-like protein
Mammalian lysophosphatidic acid acyltransferase
Oligonucleotide analogues, methods of synthesis and methods of use
Adipocyte complement related protein ZACRP12
SBHWSB2: a new member of the WD40 SOCS box family
Human IL-1 epsilon DNA and polypeptides
Very low density lipoprotein receptor polymorphisms and uses therefor
Yeast transport isoforms
Novel proteins and nucleic acids encoding same
Endothelial cell mitogen bioassay
Soluble mast cell function associated antigen (MAFA) pharmaceutical compositions and methods of making and using them
Inhibitor switch
Electronic vehicle control unit
Image forming apparatus for maintaining a constant beam scanning state
Dual damascene process using an oxide liner for a dielectric barrier layer
Optical interferometer for multiplexing optical signals
Accordion-type plant cover with attached skirt and methods
