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
Circuit for ringing signal generation for subscriber circuits
摘要
申请公布号
EP1017220(A3)
申请公布日期
2003.07.09
申请号
EP19990126234
申请日期
1999.12.30
申请人
STMICROELECTRONICS S.R.L.
发明人
ROSSI, WALTER;LARI, FERDINANDO;ANTONINI, CARLO;CONSIGLIO, PIETRO;VERGANI, LUIGI
分类号
H04M19/02;(IPC1-7):H04M19/02
主分类号
H04M19/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
METHOD AND APPARATUS FOR FILLING BATTERIES WITH COVEREDPLATES
Fabricating thermoplastic layflat film - in two layers oriented at right angles
VERFAHREN ZUR HERSTELLUNG VON P-AMINOPHENOL
PROCESS FOR THE ETHYLATION OF TOLUENE OR ETHYLBENZENE
Gas:dynamical mixing of molten metal - by cyclic extn. of metal portion and reinjection at deeper level
AKKUMULATORLADEGERAET
FLUEGELRAD, INSBESONDERE ZUM BELUEFTEN VON FLUESSIGKEITEN BEI CHEMISCHEN VERFAHREN UND BEI DER FERMENTATION
A PROCESS FOR PREPARING DEHYDRATED PROTEIN MEALS FROM ANIMAL TISSUES
METHOD FOR THE PREPARATION OF CONCENTRATED ISOTHIAZOLE-3(2H)-ONO-1,1-DIOXIDES
FABRICATION DE PRODUITS ALIMENTAIRES OU DIETETIQUES COMPRENANT DES PRODUITS LACTES OU ANALOGUES
Sewing machine pattern indicator - has cord-wound drum with selection disc with cord engagement on 360 degree rotation
Valve setting tool for IC engine - has adjusting head to rotate valve and locking nuts and measure displacement
X=ray diagnostic test phantom increasing parameters with single exposu - has several units with transducers, filters and quotient element
Medical instrument for varicose vein treatment - has ring of crystals to concentrate ultrasonic energy on treatment zone, with focus adjustment
Ceramic glass hot plate with temp. sensor - has warning lamp and bimetallic spiral in chamber in cover plate actuating switch contacts
Para-tert.-butyl-benzaldehyde prepn. - by bromination of para-tert. butyl toluene and saponification of the resulting para-tert. butyl-benzal-bromide
