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
Process of purifying sulphuric acid solutions
摘要
申请公布号
US2344429(A)
申请公布日期
1944.03.14
申请号
US19410386748
申请日期
1941.04.03
申请人
GELDER DIRK WILLEM VAN
发明人
GELDER DIRK WILLEM VAN
分类号
C01B17/90
主分类号
C01B17/90
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Controlling printing ink viscosity
Chromatographic sepn
Compression moulding of articles from chip agglomerates
Feed device for compression moulds
Valved plastic bag for holding pulverulent materials
PREFABRICATED STRESS CONTROL SHIELD
FLUID PRESSURE REGULATOR SWITCH
TOROIDAL ELECTROLYTIC SENSOR AND METHOD OF MANUFACTURING SAME
REED CONTACT DEVICE
PRODUCTION AND POWDER COATING OF POLYVINYLIDENE FLUORIDE POLYMER MATERIALS
COMPOSITION COMPRISING A POLYMER OF A CYCLIC ESTER OF A HYDROXYCARBOXYLIC ACID
FIBER-REINFORCED FOAM PLASTIC SHAPED ARTICLES
DIFLUORAMINO COMPOUNDS
CURING CATALYST SYSTEM
PROCESS FOR THE SEPARATION OF HYDROCARBON COMPOUNDS
MODIFIED ACRYLONITRILE COPOLYMERS
HEAT-INSULATING MATERIALS
5-SUBSTITUTED-2,4-OXAZOLIDINEDIONES AND MAGNESIUM CHELATE INTERMEDIATE THEREFOR
LUSTERLESS AND CORROSION RESISTANT SURFACES OF METALS
ELECTROLYTIC PROCESS FOR SURFACE CLEANING OF WIRE BUNDLES