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
Method of refining selenium
摘要
申请公布号
GB515676(A)
申请公布日期
1939.12.11
申请号
GB19380006846
申请日期
1938.03.04
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
C01B19/02
主分类号
C01B19/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
AUTOMATIC DOCUMENT CONVEYING DEVICE
IMPROVED PROCESS SEQUENCING FOR AMINE REGENERATION
INSTRUCTION BUFFER FOR A MICROCOMPUTER
METHOD AND DEVICE FOR LATERALLY JOINING PRODUCT
SLIDING APPARATUS FOR REFRIGERATOR AND ITS MANUFACTURE
RECOGEDOR DE PUENTE PARA LA ALIMENTACION DIRECTA DE MATERIAL
Valve unit for hydraulic brake systems of motor vehicles
GRAFT COPOLYMER AND ITS MANUFACTURE AND USE
PRODUCTION OF OXIDE SUPERCONDUCTING THIN FILM
PRODUCTION OF OXIDE SUPERCONDUCTING THIN FILM
FINE SPINNING ELEMENT OF SPINNING FRAME, ESPECIALLY BOBBIN AND/OR FLYER-DRIVING MECHANISM OF FLYER SPINNING FRAME
DEVIATING DEVICE FOR A PAPER PRODUCT STREAM, IN PARTICULAR IN OVERLAPPED FORMATION
CIRCUIT ARRANGEMENT FOR POWER SUPPLY TO A LOAD
A METHOD FOR PRODUCING METAL CARBIDE HEAT SOURCES
METHOD AND APPARATUS FOR IDENTIFYING MANUFACTURING DEFECTS IN SOLID STATE DEVICES
SYSTEM FOR CONTROLLING THE OPENING AND CLOSING OF SHIELD PLATE OF HELMET
TESTING DEVICE FOR ELECTROPHOTOGRAPHIC IMAGING APPARATUS
PROCESS FOR THE MANUFACTURE OF RADIANT PANELS AND THE LIKE AND RADIANT PANEL THUS OBTAINED
FIBER OPTIC DATA LINK SYSTEM
Optical and electrical connectors
