AT75655B - Amplification device as an additional device for normal telephone stations. - Google Patents

Amplification device as an additional device for normal telephone stations.

Info

Publication number: AT75655B
Authority: AT; Austria
Prior art keywords: normal telephone; telephone stations; amplification; additional; additional device
Prior art date: 1916-02-08

Application number

Other languages

Original Assignee

Siemens Ag

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.)

1916-02-08

Filing date

1917-01-20

Publication date

1919-02-25

1917-01-20 Application filed by Siemens Ag filed Critical Siemens Ag

1919-02-25 Application granted granted Critical

1919-02-25 Publication of AT75655B publication Critical patent/AT75655B/en

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE75655X		1916-02-08

Publications (1)

Publication Number	Publication Date
AT75655B true AT75655B (en)	1919-02-25

Family

ID=5637192

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT75655D AT75655B (en)	1916-02-08	1917-01-20	Amplification device as an additional device for normal telephone stations.

Country Status (1)

Country	Link
AT (1)	AT75655B (en)

1917
- 1917-01-20 AT AT75655D patent/AT75655B/en active

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