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
Improvements in sound recording
摘要
申请公布号
GB520275(A)
申请公布日期
1940.04.18
申请号
GB19400003182
申请日期
1938.10.13
申请人
KODAK LIMITED
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BONDING METHOD FOR PIEZOELECTRIC VIBRATOR
OUTPUT CIRCUIT USING DIFFERENTIAL AMPLIFIER CIRCUIT
SHIELDING STRUCTURE OF ELECTRONIC EQUIPMENT
UNWANTED INTERFERING ELECTROMAGNETIC WAVE PREVENTING DEVICE FOR PRINTED BOARD
ENCLOSURE
HIGH VISCOSITY MATERIAL SUPPLYING DEVICE
FIBER GRATING EXTERNAL RESONATOR LASER
MANUFACTURE OF THERMOELECTRIC MATERIAL
RADIATING STRUCTURE FOR ELECTRONIC APPARATUS
ELECTRONIC DEVICE
PRINTING DEVICE
CHARACTERISTICS/EVALUATION MODEL AND METHOD THEREOF
SEMICONDUCTOR INTEGRATED CIRCUIT
PROGRAMMABLE INTEGRATED CIRCUIT
INLINE CURE FURNACE MECHANISM
HIGH-FREQUENCY SEMICONDUCTOR DEVICE PACKAGE
MANUFACTURE OF SEMICONDUCTOR DEVICE
TRANSMISSION GATE CELL
MANUFACTURE OF SEMICONDUCTOR DEVICE
SEMICONDUCTOR DEVICE AND MANUFACTURE THEREOF