BE378412A - - Google Patents

Info

Publication number: BE378412A
Authority: BE; Belgium

Application number

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.)

1930-03-21

Publication of BE378412A publication Critical patent/BE378412A/xx

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
- H04M17/023—Circuit arrangements

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Computer Security & Cryptography (AREA)
Signal Processing (AREA)
Interface Circuits In Exchanges (AREA)
Meter Arrangements (AREA)
Prepayment Telephone Systems (AREA)

BE378412D 1930-03-21 BE378412A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE374952X		1930-03-21

Publications (1)

Publication Number	Publication Date
BE378412A true BE378412A (enrdf_load_html_response)

Family

ID=20309104

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE378412D BE378412A (enrdf_load_html_response)	1930-03-21

Country Status (5)

Country	Link
US (1)	US1868378A (enrdf_load_html_response)
BE (1)	BE378412A (enrdf_load_html_response)
DE (1)	DE610040C (enrdf_load_html_response)
FR (1)	FR713496A (enrdf_load_html_response)
GB (1)	GB374952A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2707724A (en) *	1952-10-07	1955-05-03	Automatic Elect Lab	Coin control circuit for postpay telephone paystations

0
- BE BE378412D patent/BE378412A/xx unknown
1931
- 1931-03-13 US US522462A patent/US1868378A/en not_active Expired - Lifetime
- 1931-03-18 FR FR713496D patent/FR713496A/fr not_active Expired
- 1931-03-19 GB GB8514/31A patent/GB374952A/en not_active Expired
- 1931-03-20 DE DET38570D patent/DE610040C/de not_active Expired

Also Published As

Publication number	Publication date
US1868378A (en)	1932-07-19
GB374952A (en)	1932-06-20
DE610040C (de)	1935-03-05
FR713496A (fr)	1931-10-28

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