PL245553A1 - Subscriber calling unit for spark-safe telephone set - Google Patents

Subscriber calling unit for spark-safe telephone set

Info

Publication number
PL245553A1
PL245553A1 PL24555384A PL24555384A PL245553A1 PL 245553 A1 PL245553 A1 PL 245553A1 PL 24555384 A PL24555384 A PL 24555384A PL 24555384 A PL24555384 A PL 24555384A PL 245553 A1 PL245553 A1 PL 245553A1
Authority
PL
Poland
Prior art keywords
spark
telephone set
calling unit
subscriber calling
safe telephone
Prior art date
Application number
PL24555384A
Other versions
PL144052B1 (en
Inventor
Eryk Penkala
Marek Belza
Roman Giel
Jozef Francik
Andrzej Rej
Original Assignee
Ct Nauk Prod Elektronik
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.)
Filing date
Publication date
Application filed by Ct Nauk Prod Elektronik filed Critical Ct Nauk Prod Elektronik
Priority to PL24555384A priority Critical patent/PL144052B1/en
Publication of PL245553A1 publication Critical patent/PL245553A1/en
Publication of PL144052B1 publication Critical patent/PL144052B1/en

Links

PL24555384A 1984-01-02 1984-01-02 Subscriber calling unit for spark-safe telephone set PL144052B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL24555384A PL144052B1 (en) 1984-01-02 1984-01-02 Subscriber calling unit for spark-safe telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL24555384A PL144052B1 (en) 1984-01-02 1984-01-02 Subscriber calling unit for spark-safe telephone set

Publications (2)

Publication Number Publication Date
PL245553A1 true PL245553A1 (en) 1985-08-13
PL144052B1 PL144052B1 (en) 1988-04-30

Family

ID=20020016

Family Applications (1)

Application Number Title Priority Date Filing Date
PL24555384A PL144052B1 (en) 1984-01-02 1984-01-02 Subscriber calling unit for spark-safe telephone set

Country Status (1)

Country Link
PL (1) PL144052B1 (en)

Also Published As

Publication number Publication date
PL144052B1 (en) 1988-04-30

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