AU2430025A - Improvements in telephone systems - Google Patents
Improvements in telephone systemsInfo
- Publication number
- AU2430025A AU2430025A AU24300/25A AU2430025A AU2430025A AU 2430025 A AU2430025 A AU 2430025A AU 24300/25 A AU24300/25 A AU 24300/25A AU 2430025 A AU2430025 A AU 2430025A AU 2430025 A AU2430025 A AU 2430025A
- Authority
- AU
- Australia
- Prior art keywords
- 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
Links
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2430025A true AU2430025A (en) | 1925-10-16 |
Family
ID=
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