DK68860C - Procedure and apparatus for electro-optical tone recording in Braille. - Google Patents

Procedure and apparatus for electro-optical tone recording in Braille.

Info

Publication number
DK68860C
DK68860C DK176740A DK176740A DK68860C DK 68860 C DK68860 C DK 68860C DK 176740 A DK176740 A DK 176740A DK 176740 A DK176740 A DK 176740A DK 68860 C DK68860 C DK 68860C
Authority
DK
Denmark
Prior art keywords
braille
electro
procedure
tone recording
optical tone
Prior art date
Application number
DK176740A
Other languages
Danish (da)
Original Assignee
Zeiss Ikon Ag
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 Zeiss Ikon Ag filed Critical Zeiss Ikon Ag
Application granted granted Critical
Publication of DK68860C publication Critical patent/DK68860C/en

Links

DK176740A 1940-01-24 1940-10-01 Procedure and apparatus for electro-optical tone recording in Braille. DK68860C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE68860X 1940-01-24

Publications (1)

Publication Number Publication Date
DK68860C true DK68860C (en) 1949-04-04

Family

ID=5634631

Family Applications (1)

Application Number Title Priority Date Filing Date
DK176740A DK68860C (en) 1940-01-24 1940-10-01 Procedure and apparatus for electro-optical tone recording in Braille.

Country Status (1)

Country Link
DK (1) DK68860C (en)

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