AU143151A - Improvements in circuit-arrangements for use in telephone systems - Google Patents

Improvements in circuit-arrangements for use in telephone systems

Info

Publication number
AU143151A
AU143151A AU1431/51A AU143151A AU143151A AU 143151 A AU143151 A AU 143151A AU 1431/51 A AU1431/51 A AU 1431/51A AU 143151 A AU143151 A AU 143151A AU 143151 A AU143151 A AU 143151A
Authority
AU
Australia
Prior art keywords
arrangements
circuit
telephone systems
telephone
systems
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
Application number
AU1431/51A
Other versions
AU150763B2 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of AU143151A publication Critical patent/AU143151A/en
Publication of AU150763B2 publication Critical patent/AU150763B2/en
Expired legal-status Critical Current

Links

AU1431/51A 1951-03-16 Improvements in circuit-arrangements for use in telephone systems Expired AU150763B2 (en)

Publications (2)

Publication Number Publication Date
AU143151A true AU143151A (en) 1951-05-17
AU150763B2 AU150763B2 (en) 1951-05-17

Family

ID=

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