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AU507217A - Improvements in automatic and semiautomatic telephone systems - Google Patents

Improvements in automatic and semiautomatic telephone systems

Info

Publication number
AU507217A
AU507217A AU5072/17A AU507217A AU507217A AU 507217 A AU507217 A AU 507217A AU 5072/17 A AU5072/17 A AU 5072/17A AU 507217 A AU507217 A AU 507217A AU 507217 A AU507217 A AU 507217A
Authority
AU
Australia
Prior art keywords
automatic
telephone systems
semiautomatic telephone
semiautomatic
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
AU5072/17A
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.)
J Pany Ltd Oscar Grahn
Original Assignee
J Pany Ltd Oscar Grahn
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 J Pany Ltd Oscar Grahn filed Critical J Pany Ltd Oscar Grahn
Publication of AU507217A publication Critical patent/AU507217A/en
Expired legal-status Critical Current

Links

AU5072/17A 1916-08-28 1917-09-05 Improvements in automatic and semiautomatic telephone systems Expired AU507217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB104,467 1916-08-28

Publications (1)

Publication Number Publication Date
AU507217A true AU507217A (en) 1917-09-20

Family

ID=

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