DE581835C - Circuit arrangement for coin telephones - Google Patents
Circuit arrangement for coin telephonesInfo
- Publication number
- DE581835C DE581835C DET40511D DET0040511D DE581835C DE 581835 C DE581835 C DE 581835C DE T40511 D DET40511 D DE T40511D DE T0040511 D DET0040511 D DE T0040511D DE 581835 C DE581835 C DE 581835C
- Authority
- DE
- Germany
- Prior art keywords
- circuit arrangement
- coin
- coin telephones
- telephones
- cashier
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Prepayment Telephone Systems (AREA)
- Interface Circuits In Exchanges (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Description
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
brückt sind.Circuit arrangement according to patent 526 633 for coin-operated telephones for incoming and outgoing traffic with a cashier magnet controlled by the office after hanging up the receiver, characterized in that the contacts (z I and 2 II) which separate the line for the purpose of transferring cashier currents • by capacitors
are bridged.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL29441D NL29441C (en) | 1929-11-14 | ||
BE367704D BE367704A (en) | 1929-11-14 | ||
DET40511D DE581835C (en) | 1929-11-14 | 1929-11-14 | Circuit arrangement for coin telephones |
FR688476D FR688476A (en) | 1929-11-14 | 1930-01-20 | Connection arrangement for prepaid phones with automatic coin collection at the end of the conversation |
CH145794D CH145794A (en) | 1929-11-14 | 1930-02-06 | Telephone system with coin-operated telephone with automatic payment of coins at the end of the call. |
GB533730A GB344633A (en) | 1929-11-14 | 1930-02-17 | Improvements in or relating to telephone pay stations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET40511D DE581835C (en) | 1929-11-14 | 1929-11-14 | Circuit arrangement for coin telephones |
Publications (1)
Publication Number | Publication Date |
---|---|
DE581835C true DE581835C (en) | 1933-08-03 |
Family
ID=7560777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET40511D Expired DE581835C (en) | 1929-11-14 | 1929-11-14 | Circuit arrangement for coin telephones |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE367704A (en) |
CH (1) | CH145794A (en) |
DE (1) | DE581835C (en) |
FR (1) | FR688476A (en) |
GB (1) | GB344633A (en) |
NL (1) | NL29441C (en) |
-
0
- BE BE367704D patent/BE367704A/xx unknown
- NL NL29441D patent/NL29441C/xx active
-
1929
- 1929-11-14 DE DET40511D patent/DE581835C/en not_active Expired
-
1930
- 1930-01-20 FR FR688476D patent/FR688476A/en not_active Expired
- 1930-02-06 CH CH145794D patent/CH145794A/en unknown
- 1930-02-17 GB GB533730A patent/GB344633A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB344633A (en) | 1931-03-12 |
NL29441C (en) | |
CH145794A (en) | 1931-03-15 |
BE367704A (en) | |
FR688476A (en) | 1930-08-23 |
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