CA477465A - Appareil de lecture de braille - Google Patents

Appareil de lecture de braille

Info

Publication number: CA477465A
Authority: CA; Canada
Prior art keywords: reading apparatus; reading
Prior art date: 1951-10-02
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

CA477465A

Other languages

Inventor

W. Bryce James

N. Wheeler John

Original Assignee

International Business Machines Corp

Publication date

1951-10-02

1951-10-02 Application granted granted Critical

1951-10-02 Publication of CA477465A publication Critical patent/CA477465A/fr

Status Expired legal-status Critical Current

CA477465A Appareil de lecture de braille Expired CA477465A (fr)

Application Number	Priority Date	Filing Date	Title
CA477465T

Publication Number	Publication Date
CA477465A true CA477465A (fr)	1951-10-02

Application Number	Title	Priority Date	Filing Date
CA477465A Expired CA477465A (fr)			Appareil de lecture de braille

Country	Link
CA (1)	CA477465A (fr)

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CA477465A (fr)	1951-10-02	Appareil de lecture de braille
CA471962A (fr)	1951-03-06	Dispositifs de montage de pieces a ouvrer
CA473397A (fr)	1951-05-08	Appareil de classeur
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CA475961A (fr)	1951-08-07	Appareil de changement de lampes
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CA474835A (fr)	1951-06-26	Appareil de phonographes
CA475907A (fr)	1951-08-07	Appareil de phonographe
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CA477640A (fr)	1951-10-09	Appareil selecteur de cartes
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CA473983A (fr)	1951-05-29	Appareil oscillographique
CA474562A (fr)	1951-06-19	Appareils oscillographes
CA473198A (fr)	1951-04-24	Appareil a diviser
CA479672A (fr)	1951-12-25	Appareil de mise en position