CH24501A - Mikrophon mit beweglichem Sprechtrichter - Google Patents

Mikrophon mit beweglichem Sprechtrichter

Info

Publication number
CH24501A
CH24501A CH24501A CH24501DA CH24501A CH 24501 A CH24501 A CH 24501A CH 24501 A CH24501 A CH 24501A CH 24501D A CH24501D A CH 24501DA CH 24501 A CH24501 A CH 24501A
Authority
CH
Switzerland
Prior art keywords
moveable
microphone
speaker horn
horn
speaker
Prior art date
Application number
CH24501A
Other languages
English (en)
Inventor
Hans Preiswerk
Original Assignee
Hans Preiswerk
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 Hans Preiswerk filed Critical Hans Preiswerk
Publication of CH24501A publication Critical patent/CH24501A/de

Links

CH24501A 1902-08-04 1902-08-04 Mikrophon mit beweglichem Sprechtrichter CH24501A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH24501T 1902-08-04

Publications (1)

Publication Number Publication Date
CH24501A true CH24501A (de) 1903-01-15

Family

ID=4234093

Family Applications (1)

Application Number Title Priority Date Filing Date
CH24501A CH24501A (de) 1902-08-04 1902-08-04 Mikrophon mit beweglichem Sprechtrichter

Country Status (1)

Country Link
CH (1) CH24501A (de)

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