CH5927A - Mikrophon für Fernsprechbetrieb - Google Patents

Mikrophon für Fernsprechbetrieb

Info

Publication number: CH5927A
Authority: CH; Switzerland
Prior art keywords: microphone; telephone operation; telephone
Prior art date: 1892-11-28

Application number

CH5927A

Other languages

English (en)

Inventor

Albin Groeper

Original Assignee

Albin Groeper

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.)

1892-11-28

Filing date

1892-11-28

Publication date

1893-04-29

1892-11-28 Application filed by Albin Groeper filed Critical Albin Groeper

1893-04-29 Publication of CH5927A publication Critical patent/CH5927A/de

Links

CH5927A 1892-11-28 1892-11-28 Mikrophon für Fernsprechbetrieb CH5927A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH5927T		1892-11-28

Publications (1)

Publication Number	Publication Date
CH5927A true CH5927A (de)	1893-04-29

Family

ID=4190559

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH5927A CH5927A (de)	1892-11-28	1892-11-28	Mikrophon für Fernsprechbetrieb

Country Status (1)

Country	Link
CH (1)	CH5927A (de)

1892
- 1892-11-28 CH CH5927A patent/CH5927A/de unknown

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