Conference connection and control device for telephone subscriber lines,申请号US19650437443-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	Conference connection and control device for telephone subscriber lines
摘要
申请公布号	US3389224(A)	申请公布日期	1968.06.18
申请号	US19650437443	申请日期	1965.03.05
申请人	SHAW ELECTRONICS INCORPORATED	发明人	SHAW WALTER H.
分类号	H04M3/56	主分类号	H04M3/56
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Apparat til skraa Overskæring af et af parallelle, endeløse Traade bestaaende Baand.

Improvements in or relating to the preparation of catalysts

Improvements in or relating to the sealing of pyrotechnics

Improvements in or relating to devices for the hydraulic pressure testing of vesselsand the like

Improvements relating to sealing devices between rotating and non-rotating members

Improvement in cooling systems suitable for electron discharge devices

Driver device for use with a railway-wheel-turning lathe

Improvements in or relating to the production of lantern slides

Improvements relating to the manufacture of boots and shoes

Improvements in or relating to airplanes

Improvements in rivets

Nach Art einer Kurvenscheibe wirkende Steuervorrichtung fuer Rechen- oder Buchungsmaschinen

Verfahren zur Herstellung eines Mittels zum Schwoeden von Haeuten und Fellen

Verfahren zum Umspinnen von Draehten

Flugzeugspann- und -decklack

A new or improved coin-operated electric switch

An apparatus for the transmission of messages

MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE PRINCIPAL