CH55448A - Call counting device for telephone systems - Google Patents

Call counting device for telephone systems

Info

Publication number: CH55448A
Authority: CH; Switzerland
Prior art keywords: counting device; telephone systems; call counting; call; telephone
Prior art date: 1910-12-12

Application number

CH55448A

Other languages

German (de)

Inventor

Co Bell Telephon Manufacturing

Original Assignee

Bell Telephone Mfg

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.)

1910-12-12

Filing date

1910-12-12

Publication date

1912-08-16

1910-12-12 Application filed by Bell Telephone Mfg filed Critical Bell Telephone Mfg

1912-08-16 Publication of CH55448A publication Critical patent/CH55448A/en

Links

CH55448A 1910-12-12 1910-12-12 Call counting device for telephone systems CH55448A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH55448T		1910-12-12

Publications (1)

Publication Number	Publication Date
CH55448A true CH55448A (en)	1912-08-16

Family

ID=4295368

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH55448A CH55448A (en)	1910-12-12	1910-12-12	Call counting device for telephone systems

Country Status (1)

Country	Link
CH (1)	CH55448A (en)

1910
- 1910-12-12 CH CH55448A patent/CH55448A/en unknown

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