CA469403A - Ecrans de projection - Google Patents

Ecrans de projection

Info

Publication number: CA469403A
Authority: CA; Canada
Prior art keywords: viewing screens; screens; viewing
Prior art date: 1950-11-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA469403A

Other languages

Inventor

Robin Law Russell

Original Assignee

Radio Corporation of America

Publication date

1950-11-14

1950-11-14 Application granted granted Critical

1950-11-14 Publication of CA469403A publication Critical patent/CA469403A/fr

Status Expired legal-status Critical Current

CA469403A Ecrans de projection Expired CA469403A (fr)

Application Number	Priority Date	Filing Date	Title
CA469403T

Publication Number	Publication Date
CA469403A true CA469403A (fr)	1950-11-14

Application Number	Title	Priority Date	Filing Date
CA469403A Expired CA469403A (fr)			Ecrans de projection

Country	Link
CA (1)	CA469403A (fr)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4309073A (en) *	1979-01-17	1982-01-05	Sanyo Electric Co., Ltd.	Translucent screen assembly

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4309073A (en) *	1979-01-17	1982-01-05	Sanyo Electric Co., Ltd.	Translucent screen assembly

Publication	Publication Date	Title
CA469403A (fr)	1950-11-14	Ecrans de projection
CA466325A (fr)	1950-07-04	Ecran pour rayons de chaleur
CA462434A (fr)	1950-01-17	Trepied
CA465074A (fr)	1950-05-16	Appareil d'etalage
CA467332A (fr)	1950-08-15	Ecrans de projection transportables
CA469573A (fr)	1950-11-21	Ecrans de projection arriere
CA454677A (fr)	1949-02-15	Plaque de crible
CA468403A (fr)	1950-09-26	Appareils de criblage
CA476198A (fr)	1951-08-21	Etalages
CA466093A (fr)	1950-06-27	Ecran de projection
CA464658A (fr)	1950-04-25	Appareil photographique
CA465093A (fr)	1950-05-16	Perforateur a papier
CA471819A (fr)	1951-02-27	Materiaux pour moustiquaires
CA479191A (fr)	1951-12-11	Cribles
CA464689A (fr)	1950-04-25	Ecran luminescent
CA463796A (fr)	1950-03-21	Rouleau extensible pour fenetre
CA465085A (fr)	1950-05-16	Ecran de projection de vues animees
CA463054A (fr)	1950-02-07	Appareil de television
CA467237A (fr)	1950-08-08	Appareil de television
CA476972A (fr)	1951-09-18	Appareils a nettoyer les tamis
CA469927A (fr)	1950-12-05	Ecrans de projection d'images
CA477428A (fr)	1951-10-02	Ecrans de projection
CA466310A (fr)	1950-07-04	Groupe de projection
CA466306A (fr)	1950-07-04	Appareil de scellement
CA455755A (fr)	1949-04-05	Ecran de radiographie