FR506156A - Optophone - Google Patents

Optophone

Info

Publication number
FR506156A
FR506156A FR506156A FR506156DA FR506156A FR 506156 A FR506156 A FR 506156A FR 506156 A FR506156 A FR 506156A FR 506156D A FR506156D A FR 506156DA FR 506156 A FR506156 A FR 506156A
Authority
FR
France
Prior art keywords
optophone
Prior art date
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
FR506156A
Other languages
French (fr)
Inventor
Archibald Barr
William Stroud
Albe Edmund Edward Fournier D
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDMUND EDWARD FOURNIER D ALBE
Original Assignee
EDMUND EDWARD FOURNIER D ALBE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EDMUND EDWARD FOURNIER D ALBE filed Critical EDMUND EDWARD FOURNIER D ALBE
Application granted granted Critical
Publication of FR506156A publication Critical patent/FR506156A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/006—Teaching or communicating with blind persons using audible presentation of the information

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR506156A 1918-12-13 1919-11-17 Optophone Expired FR506156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB506156X 1918-12-13

Publications (1)

Publication Number Publication Date
FR506156A true FR506156A (en) 1920-08-16

Family

ID=10456634

Family Applications (1)

Application Number Title Priority Date Filing Date
FR506156A Expired FR506156A (en) 1918-12-13 1919-11-17 Optophone

Country Status (1)

Country Link
FR (1) FR506156A (en)

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