ES92789A1 - Improvements in microphones. - Google Patents
Improvements in microphones.Info
- Publication number
- ES92789A1 ES92789A1 ES92789A ES92789A ES92789A1 ES 92789 A1 ES92789 A1 ES 92789A1 ES 92789 A ES92789 A ES 92789A ES 92789 A ES92789 A ES 92789A ES 92789 A1 ES92789 A1 ES 92789A1
- Authority
- ES
- Spain
- Prior art keywords
- microphones
- 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 |
---|---|---|---|
ES92789A ES92789A1 (en) | 1925-02-28 | 1925-02-28 | Improvements in microphones. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES92789A ES92789A1 (en) | 1925-02-28 | 1925-02-28 | Improvements in microphones. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES92789A1 true ES92789A1 (en) | 1925-06-01 |
Family
ID=64263983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92789A Expired ES92789A1 (en) | 1925-02-28 | 1925-02-28 | Improvements in microphones. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES92789A1 (en) |
-
1925
- 1925-02-28 ES ES92789A patent/ES92789A1/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES92789A1 (en) | Improvements in microphones. | |
ES95927A1 (en) | Improvements in speakers. | |
ES94489A1 (en) | Improvements in loudspeaker devices. | |
DK38629C (en) | Microphone. | |
ES92111A1 (en) | Improvements in radio-receivers. | |
ES93199A1 (en) | Improvements in radio-receivers. | |
ES93200A1 (en) | Improvements in radio-receivers. | |
DK41102C (en) | Speaker. | |
ES92085A1 (en) | Improvements in telephones. | |
ES91153A1 (en) | Improvements in speakers. | |
ES103151A1 (en) | Improvements in microphones. | |
ES94474A1 (en) | Improvements in phonographs. | |
DK37842C (en) | Brokbaand. | |
AT109650B (en) | Malschloss. | |
DK36793C (en) | Ajlespreder. | |
DK36723C (en) | Gravetrin. | |
DK36670C (en) | Vodrulle. | |
DK36556C (en) | Hegnstraadsstrammer. | |
DK36537C (en) | Pattekniv. | |
DK36257C (en) | Enlinet Gribeskovl. | |
DK36112C (en) | Reolstige. | |
DK36890C (en) | Saamaskine. | |
DK37202C (en) | Plovfod. | |
DK37286C (en) | Roegreb. | |
DK37353C (en) | Snitklup. |