Apparatus for the retention of evidence of telephone conversations,申请号US19570648157-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	Apparatus for the retention of evidence of telephone conversations
摘要
申请公布号	US3045068(A)	申请公布日期	1962.07.17
申请号	US19570648157	申请日期	1957.03.25
申请人	WEINGART RICHARD I N	发明人	WEINGART RICHARD I. N.
分类号	H04M11/00	主分类号	H04M11/00
代理机构		代理人
主权项
地址

您可能感兴趣的专利

Primer and fuel cut-off device

ELECTROMAGNETIC RELAYS

Perfectionnements au mode de commande des interrupteurs électriques à main

Banc d'essai pour petits appareils électriques

Production of bis-phenols by condensation of phenols with ketones catalyzed by hydrogen selenide or hydrogen telluride

Perfectionnements aux tubulures d'admission et d'échappement

Fire alarm system

Electric drive transmission

Apparatus for photoelectrically sensing message records

Pulse frequency divider

Container for sensitized film and method of manufacture thereof

Control thermostat unit for an electric heater

Metallisable polyazo dyestuffs

New acylated hydrazones and their use in the control of fungi

Textile printing pastes and method of applying

Constant temperature device

Transistor bias circuit with stabilization

Unitary shoulder support and reading light attachment for a telephone

3-ethyl-3-phenyl-2, 6-piperazinedione and derivatives thereof