CH9138A - Mikrophon, wirksam auf große Entfernungen - Google Patents

Mikrophon, wirksam auf große Entfernungen

Info

Publication number
CH9138A
CH9138A CH9138A CH9138DA CH9138A CH 9138 A CH9138 A CH 9138A CH 9138 A CH9138 A CH 9138A CH 9138D A CH9138D A CH 9138DA CH 9138 A CH9138 A CH 9138A
Authority
CH
Switzerland
Prior art keywords
microphone
over long
long distances
effective over
effective
Prior art date
Application number
CH9138A
Other languages
English (en)
Inventor
Henri Carbonnelle
Original Assignee
Henri Carbonnelle
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 Henri Carbonnelle filed Critical Henri Carbonnelle
Publication of CH9138A publication Critical patent/CH9138A/de

Links

CH9138A 1894-09-10 1894-09-10 Mikrophon, wirksam auf große Entfernungen CH9138A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH9138T 1894-09-10

Publications (1)

Publication Number Publication Date
CH9138A true CH9138A (de) 1895-04-15

Family

ID=4198088

Family Applications (1)

Application Number Title Priority Date Filing Date
CH9138A CH9138A (de) 1894-09-10 1894-09-10 Mikrophon, wirksam auf große Entfernungen

Country Status (1)

Country Link
CH (1) CH9138A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756614C (de) * 1937-12-19 1952-10-13 Helmut Dr Sell Kohlemikrofon, bei welchem das Widerstandsmaterial in einem von der Membran frei getragenen Behaelter untergebracht ist

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756614C (de) * 1937-12-19 1952-10-13 Helmut Dr Sell Kohlemikrofon, bei welchem das Widerstandsmaterial in einem von der Membran frei getragenen Behaelter untergebracht ist

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