DK20601C - Telephone or Microphone audio box for phonographic recording and reproduction of telephone messages. - Google Patents

Telephone or Microphone audio box for phonographic recording and reproduction of telephone messages.

Info

Publication number
DK20601C
DK20601C DK20601DA DK20601C DK 20601 C DK20601 C DK 20601C DK 20601D A DK20601D A DK 20601DA DK 20601 C DK20601 C DK 20601C
Authority
DK
Denmark
Prior art keywords
telephone
reproduction
microphone audio
messages
audio box
Prior art date
Application number
Other languages
Danish (da)
Inventor
Alexander Morris Newman
Franz Seelau
Original Assignee
Alexander Morris Newman
Franz Seelau
Publication date
Application granted granted Critical
Publication of DK20601C publication Critical patent/DK20601C/en

Links

DK20601D Telephone or Microphone audio box for phonographic recording and reproduction of telephone messages. DK20601C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK20601T

Publications (1)

Publication Number Publication Date
DK20601C true DK20601C (en) 1915-09-27

Family

ID=27835998

Family Applications (1)

Application Number Title Priority Date Filing Date
DK20601D DK20601C (en) Telephone or Microphone audio box for phonographic recording and reproduction of telephone messages.

Country Status (1)

Country Link
DK (1) DK20601C (en)

Similar Documents

Publication Publication Date Title
DK20601C (en) Telephone or Microphone audio box for phonographic recording and reproduction of telephone messages.
DK23107C (en) Apparatus for Phonographic Recording and Reproduction of Telephone Transmitted Messages.
CH78729A (en) Device for the phonographic recording and reproduction of conversations transmitted by telephone
DK23140C (en) Device for amplification and reproduction of sound waves.
US1548737A (en) Sound record
FR437442A (en) Device for phonographic reproduction of telephone conversations
FR473342A (en) Reproducer and electric amplifier for sound vibrations
DK17791C (en) Procedure for recording and reproducing tones.
DK22260C (en) Device for Telephones for Automatic Phonographic Answering and Recording of the Telephoned Message.
DK19830C (en) Audio box or similar for Gramophones, Phonographs and similar Devices.
DK13235C (en) Devices for devices for automatic recording and reproduction of a played piece of music.
FR459319A (en) Talking machine for recording and reproduction
FR14450E (en) Phonographic reproducer
FR14451E (en) Phonographic reproducer
FR14452E (en) Phonographic reproducer
FR417518A (en) Phonographic reproducer
FR481600A (en) Reproducing device and sound amplifier, for phonographs
DK12892C (en) Method and Apparatus for the production of gramophone records, phonograph rollers and similar sound reproducers.
AT81494B (en) Device for phonographical recording and replay Device for phonographical recording and playback of conversations transmitted by telephone. results of conversations transmitted by telephone.
DK17471C (en) Apparatus for Phonographic Recording of Phone Calls.
DK18385C (en) Apparatus for apparatus for mechanical reproduction of music and the like.
CA121314A (en) Sound recorder and reproducer
CH66346A (en) Phonographic reproducer
CH65635A (en) Equipment on telephones for phonographic recording of the conversation between the calling party and the called party
CA169431A (en) Sound and light amplifier