ES90770A1 - Improvement in the loudspeaker receivers of telephony with or without wires. - Google Patents
Improvement in the loudspeaker receivers of telephony with or without wires.Info
- Publication number
- ES90770A1 ES90770A1 ES90770A ES90770A ES90770A1 ES 90770 A1 ES90770 A1 ES 90770A1 ES 90770 A ES90770 A ES 90770A ES 90770 A ES90770 A ES 90770A ES 90770 A1 ES90770 A1 ES 90770A1
- Authority
- ES
- Spain
- Prior art keywords
- telephony
- loudspeaker
- receivers
- wires
- improvement
- 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 |
---|---|---|---|
ES90770A ES90770A1 (en) | 1924-09-12 | 1924-09-12 | Improvement in the loudspeaker receivers of telephony with or without wires. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES90770A ES90770A1 (en) | 1924-09-12 | 1924-09-12 | Improvement in the loudspeaker receivers of telephony with or without wires. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES90770A1 true ES90770A1 (en) | 1924-11-01 |
Family
ID=64254767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90770A Expired ES90770A1 (en) | 1924-09-12 | 1924-09-12 | Improvement in the loudspeaker receivers of telephony with or without wires. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES90770A1 (en) |
-
1924
- 1924-09-12 ES ES90770A patent/ES90770A1/en not_active Expired
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