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 for the purification of 1-ascorbic acid
摘要
申请公布号
US2517276(A)
申请公布日期
1950.08.01
申请号
US19450594170
申请日期
1945.05.16
申请人
MERCK & CO., INC.
发明人
JR. HENRY H. BASSFORD,;HARMON WILLIAM S.
分类号
C07D307/62
主分类号
C07D307/62
代理机构
代理人
主权项
地址
您可能感兴趣的专利
BIODEGRADABLE MOLDED PRODUCT BY MIXTURE OF SWEET-POTATO STARCH LEAF AND CHITOSAN OR POSITIVE STARCH
ROLLING STOCK
A harbour and a method of making harbours on the shore line typically rocky shore line
A process of manufacturing from metal powders or their oxides partially alloyed powders for powder metallurgical applications
A process of manufacturing esters of 3-phenoxy benzyl alcohol
An improved process for the preparation of substituted 2-oxindole-1-carboxamides
An improved drive system such as a two gear epicyclic drive similar to harmonic drive system
CURRENT LIMITING CIRCUIT FOR INVERTER REFRIGERATOR
FLEXIBLY SUSPENDED GAS DISTRIBUTION MANIFOLD FOR PLASMA CHAMBER
SEMICONDUCTOR ELEMENT AND MANUFACTURING METHOD
STAGED VENTING OF FUEL CELL SYSTEM DURING RAPID SHUTDOWN
METHOD FOR TRANSMITTING CEREMONY VIDEO USING INTERNET
METHOD FOR GUIDING UTILITY STOP USING SHORT MESSAGE SERVICE IN MOBILE COMMUNICATION SYSTEM
OPEN GEOGRAPHIC INFORMATION PROCESSING COMPONENT SYSTEM
PLASMA DISPLAY PANEL
OPTICAL PICKUP ACTUATOR
ALIGNER
PLASMA PROCESS SYSTEM
FLAT MAGNETRON SPUTTERING APPARATUS
ULTRA HIGH-TEMPERATURE HEAT-TREATING APPARATUS
