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 or relating to the production of elemental silicon
摘要
申请公布号
GB865249(A)
申请公布日期
1961.04.12
申请号
GB19580001327
申请日期
1958.01.14
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
分类号
C01B33/033
主分类号
C01B33/033
代理机构
代理人
主权项
地址
您可能感兴趣的专利
공탄용 증기 보일러
자동판매기 등의 정장치에 있어서 도난 방지 장치
강 관 연 결 구
ELECTRICAL CONTACT MATERIAL
CHIP-SHAPED CONDENSER AND METHOD OF PRODUCING SAME
SQUARE VARISTOR
VOICE RECOGNITION EQUIPMENT
DISPLAY
INTERFERENCE TYPE MULTIMODE FIBER OPTICS SWITCH AND MODULATOR
SAFETY CONTROLLER FOR GAS TURBINE GENERATING PLANT
METHOD OF FIRINT MERCURY LAMP
NEGATIVE PRESSURE SWITCH FOR INTERNAL COMBUSTION ENGINE
METHOD OF PRODUCING WATERTIGHT CONDUCTOR
LEAD SWITCH
INTEGRATED MULTI-LAYER ANALYSING ELEMENT FOR ANALYSIS OF PROTEIN
ELECTROLYTIC DECONTAMINATING METHOD FOR RADIOACTIVELY CONTAMINATED METAL
METHOD OF OPERATING FLUID BED BOILER
STEEL PLATE PLATED ON BOTH SIDES WITH DISSIMILAR KINDS FOR AUTOMOBILE
MANUFACTURE OF KILLED STEEL SLAB FOR HOT ROLLING
METAL COMPLEX COMPOUND DYE