ES117322A1 - Improvements in telephone devices. - Google Patents
Improvements in telephone devices.Info
- Publication number
- ES117322A1 ES117322A1 ES117322A ES117322A ES117322A1 ES 117322 A1 ES117322 A1 ES 117322A1 ES 117322 A ES117322 A ES 117322A ES 117322 A ES117322 A ES 117322A ES 117322 A1 ES117322 A1 ES 117322A1
- Authority
- ES
- Spain
- Prior art keywords
- telephone devices
- telephone
- devices
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES117322A ES117322A1 (en) | 1930-03-18 | 1930-03-18 | Improvements in telephone devices. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES117322A ES117322A1 (en) | 1930-03-18 | 1930-03-18 | Improvements in telephone devices. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES117322A1 true ES117322A1 (en) | 1930-05-01 |
Family
ID=65565864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES117322A Expired ES117322A1 (en) | 1930-03-18 | 1930-03-18 | Improvements in telephone devices. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES117322A1 (en) |
-
1930
- 1930-03-18 ES ES117322A patent/ES117322A1/en not_active Expired
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