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
ACOUSTIC FILTERS
摘要
申请公布号
US3581248(A)
申请公布日期
1971.05.25
申请号
USD3581248
申请日期
1969.03.26
申请人
ZENITH RADIO CORP.
发明人
ADRIAN J. DE VRIES;THOMAS J. WOJCIK
分类号
H03H9/02;H03H9/145;H03H9/64;(IPC1-7):H04R17/10;H01V7/00
主分类号
H03H9/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Strip of loosely connected hold down clips
Space framing system
Fish hook unsnagger and method
Strike indicator for fishing tackle
Trigger and trigger guard spring system
Toilet seat covering
Shooting crossbow
Flush mount whole house fan shutter
Knockdown type combination locking device for suitcases
Apparatus for tension expanding tubes
PRESSURE TUBE TYPE REACTOR AND OPERATING METHOD OF SAID REACTOR
Bovine placental lactogen gene
Display unit with bent fluorescent lamp
Image signal conversion device
Twin-brushes rotary toothbrush
ANORDNING VID TANK FOR BEHANDLING AV VETSKA
SILK LIKE TWO COMPONENT CONJUGATED YARN AND MANUFACTURING THEREOF
PROCESS FOR PREPARING POLYESTER FIBER HAVING GOOD MOISTURE ABSORPTION
拉风车玩具
美术吊灯(一)
