DK33968C - Apparatus for apparatus for recording and reproducing phonographic sound waves. - Google Patents

Apparatus for apparatus for recording and reproducing phonographic sound waves.

Info

Publication number
DK33968C
DK33968C DK33968DA DK33968C DK 33968 C DK33968 C DK 33968C DK 33968D A DK33968D A DK 33968DA DK 33968 C DK33968 C DK 33968C
Authority
DK
Denmark
Prior art keywords
reproducing
recording
sound waves
phonographic sound
phonographic
Prior art date
Application number
Other languages
Danish (da)
Inventor
Lee De Forest
Original Assignee
Lee De Forest
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 Lee De Forest filed Critical Lee De Forest
Application granted granted Critical
Publication of DK33968C publication Critical patent/DK33968C/en

Links

DK33968D 1923-04-28 1923-07-09 Apparatus for apparatus for recording and reproducing phonographic sound waves. DK33968C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33968XA 1923-04-28 1923-04-28

Publications (1)

Publication Number Publication Date
DK33968C true DK33968C (en) 1924-12-22

Family

ID=21705666

Family Applications (1)

Application Number Title Priority Date Filing Date
DK33968D DK33968C (en) 1923-04-28 1923-07-09 Apparatus for apparatus for recording and reproducing phonographic sound waves.

Country Status (1)

Country Link
DK (1) DK33968C (en)

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