PROCESS FOR PREPARING PHTHALEINS OF HIGH PURITY,申请号PL19770202311-传众专利搜索

首页产品黄页商标征信

会员服务注册登录

法人/股东/高管

发明名称	PROCESS FOR PREPARING PHTHALEINS OF HIGH PURITY
摘要
申请公布号	PL112796(B1)	申请公布日期	1980.10.31
申请号	PL19770202311	申请日期	1977.11.21
申请人		发明人
分类号	C07D;C07D307/88;(IPC1-7):C07D307/88	主分类号	C07D
代理机构		代理人
主权项
地址

您可能感兴趣的专利

RAW MIXTURE FOR PRODUCING REFRACTORY ARTICLES

METHOD OF CUTTING TUBULAR, POROUS AND CAPILLARY MATERIAL ARTICLES

METHOD OF FERRIC SULFIDE AND OXIDIZED MINERAL RECOVERY FROM GOLD-CONTAINING ORES

MOUNTING DEVICE OF CRANE WITH TELESCOPIC TOWER

SHEET STEEL GRIPPER

CONVEYER WORKING MEMBER

GLASS PLASTIC MATERIAL

POLYVINYL CHLORIDE-BASED COMPOSITION

TWIN-TUBE UNIT FOR PNEUMATIC CONVEYING OF GOODS IN CONTAINERS

EGG REPOSITIONING DEVICE

METHOD AND APPARATUS FOR LOCKING VEHICLE ROCKING-ARM AXLE

LINE FOR APPLYING THERMOPLASTIC COATING ONTO EXTERNAL SURFACE OF PIPES BY EXTRUSION

ANTIADHESION COATING FOR SEPARATING ARTICLES MADE OF ELASTIC FOAMED POLYURETHANE

STONE GRINDING APPARATUS

APPARATUS FOR PRESSING ARTICLES FROM POWDERS

AUTOMATIC MACHINE FOR ASSEMBLING CHAFT-SLEEVE-TYPE PARTS

APPARATUS TO LATHE FOR TURNING MAINLY THREAD SYMBOLS

APPARATUS FOR TURNING INTERIOR SHAPED SURFACES ON AUTOMATIC LATHES

UNIT FOR PRESSURE DIE CASTING DETACHABLE MOULDS