CH36760A - Kopfresonanz-Mikrotelephon - Google Patents

Kopfresonanz-Mikrotelephon

Info

Publication number
CH36760A
CH36760A CH36760A CH36760DA CH36760A CH 36760 A CH36760 A CH 36760A CH 36760 A CH36760 A CH 36760A CH 36760D A CH36760D A CH 36760DA CH 36760 A CH36760 A CH 36760A
Authority
CH
Switzerland
Prior art keywords
head resonance
resonance microphone
microphone
head
resonance
Prior art date
Application number
CH36760A
Other languages
English (en)
Inventor
Gustav Hellfritsch
Original Assignee
Gustav Hellfritsch
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 Gustav Hellfritsch filed Critical Gustav Hellfritsch
Publication of CH36760A publication Critical patent/CH36760A/de

Links

CH36760A 1906-04-12 1906-04-12 Kopfresonanz-Mikrotelephon CH36760A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH36760T 1906-04-12

Publications (1)

Publication Number Publication Date
CH36760A true CH36760A (de) 1907-02-28

Family

ID=4261099

Family Applications (1)

Application Number Title Priority Date Filing Date
CH36760A CH36760A (de) 1906-04-12 1906-04-12 Kopfresonanz-Mikrotelephon

Country Status (1)

Country Link
CH (1) CH36760A (de)

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