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
Microphone
摘要
申请公布号
US2179733(A)
申请公布日期
1939.11.14
申请号
US19350051501
申请日期
1935.11.25
申请人
SIEMENS BROTHERS & COMPANY, LIMITED
发明人
SUTTON GEORGE WILLIAM
分类号
H04R21/02
主分类号
H04R21/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Rotary high-frequency switching circuit
Electronic discharge tube and circuits therefor
Cellule pour l'électrolyse des solutions salines
Perfectionnements aux appareils de distribution du verre en fusion
Improvements in acceleration and deceleration testing instruments for motor and like vehicles
Vacuum tube
Electromagnetic wave direction responsive apparatus
File
Massage table
Power lawn mower with air filtering screen
A process for the decolouration of articles produced from halogen-containing high molecular compounds
Window cutting means for envelope machines
Bracket supported suspended chair
PRESSURE SENSITIVE ADHESIVE
PAINT BRUSH PACKAGE
Improvements in lasting machines, and in the manufacture of shoes therewith
Improvements in or relating to temperature controlling devices
Improvements relating to pulleys for belt drives
ΕΛΑΣΤΙΚΟΣ ΚΗΛΕΠΙΔΕΣΜΟΣ.
ΤΕΛΕΙΟΠΟΙΗΣΙΣ ΕΙΣ ΤΑΣ ΜΕΘΟΔΟΥΣ ΚΑΙ ΟΡΓΑΝΑ ΔΙΑ ΤΟΝΠΡΟΣΔΙΟΡΙΣΜΟΝ ΤΗΣ ΚΛΙΣΕΩΣ ΤΩΝ ΥΠΟ ΔΙΑΤΡΗΣΕΩΣ ΔΙΑΣΧΙΖΟΜΕΝΩΝ ΔΙΑΣΤΡΩΣΕΩΝ.
