PL109522B2 - Central battery telephone set with spark-safe call circuit - Google Patents
Central battery telephone set with spark-safe call circuitInfo
- Publication number
- PL109522B2 PL109522B2 PL20863078A PL20863078A PL109522B2 PL 109522 B2 PL109522 B2 PL 109522B2 PL 20863078 A PL20863078 A PL 20863078A PL 20863078 A PL20863078 A PL 20863078A PL 109522 B2 PL109522 B2 PL 109522B2
- Authority
- PL
- Poland
- Prior art keywords
- spark
- telephone set
- call circuit
- central battery
- battery telephone
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL20863078A PL109522B2 (en) | 1978-07-24 | 1978-07-24 | Central battery telephone set with spark-safe call circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL20863078A PL109522B2 (en) | 1978-07-24 | 1978-07-24 | Central battery telephone set with spark-safe call circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
PL208630A1 PL208630A1 (en) | 1979-05-21 |
PL109522B2 true PL109522B2 (en) | 1980-06-30 |
Family
ID=19990740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL20863078A PL109522B2 (en) | 1978-07-24 | 1978-07-24 | Central battery telephone set with spark-safe call circuit |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL109522B2 (en) |
-
1978
- 1978-07-24 PL PL20863078A patent/PL109522B2/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL208630A1 (en) | 1979-05-21 |
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