DK34490C - Apparatus for Sending and Receiving Sound Waves. - Google Patents

Apparatus for Sending and Receiving Sound Waves.

Info

Publication number
DK34490C
DK34490C DK34490DA DK34490C DK 34490 C DK34490 C DK 34490C DK 34490D A DK34490D A DK 34490DA DK 34490 C DK34490 C DK 34490C
Authority
DK
Denmark
Prior art keywords
sending
sound waves
receiving sound
receiving
waves
Prior art date
Application number
Other languages
Danish (da)
Inventor
Alexander Behm
Original Assignee
Alexander Behm
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 Alexander Behm filed Critical Alexander Behm
Application granted granted Critical
Publication of DK34490C publication Critical patent/DK34490C/en

Links

DK34490D 1921-11-17 1922-11-09 Apparatus for Sending and Receiving Sound Waves. DK34490C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE34490X 1921-11-17

Publications (1)

Publication Number Publication Date
DK34490C true DK34490C (en) 1925-05-11

Family

ID=5622497

Family Applications (1)

Application Number Title Priority Date Filing Date
DK34490D DK34490C (en) 1921-11-17 1922-11-09 Apparatus for Sending and Receiving Sound Waves.

Country Status (1)

Country Link
DK (1) DK34490C (en)

Similar Documents

Publication Publication Date Title
DK33190C (en) Method and Apparatus for Determining the Direction of Received Electric Waves.
DK38510C (en) Sound reproducing apparatus.
DK33746C (en) Device for Transmitting Mechanical and Acoustic Oscillations.
DK38749C (en) Apparatus for Converting Electric Vibrations to Sound Vibrations and vice versa.
DK38775C (en) Sound Reproducing Device (Speaker).
DK36883C (en) Sound reproducing apparatus.
DK38386C (en) Sound reproducing apparatus.
DK32304C (en) Method and Apparatus for Transmitting Sound Vibrations.
DK42509C (en) Acoustic Device for Receiving and Reproducing Sound.
DK43665C (en) Acoustic Apparatus.
DK35417C (en) Acoustic Apparatus.
DK31049C (en) Vibration apparatus, in particular for recording and generating sound waves.
DK54507C (en) Apparatus for Receiving and Determining Direction of Sound Waves.
DK30709C (en) Apparatus for shelling Cereals and the like.
DK33224C (en) Apparatus for sound generation.
DK36042C (en) Method and Device for Frequency Increase.
DK39198C (en) Sound reproduction apparatus.
FR623776A (en) Acoustic amplifier device for loudspeakers, phonographs, and similar apparatus
DK37820C (en) Sound reproducing apparatus.
DK36642C (en) Telephone or similar sound reproducing apparatus.
DK30671C (en) Apparatus for cleaning potatoes and the like.
DK29918C (en) Apparatus for knocking off Kettle and the like.
DK38593C (en) Sound Funnel or Speakers for Gramophones and Radios.
DK41677C (en) Procedure and Device for Elimination of Vibrations.
DK38638C (en) Sound Reproducing Device (Speaker).