FR1375014A - Installation d'intercommunication simplex à haut-parleurs - Google Patents
Installation d'intercommunication simplex à haut-parleursInfo
- Publication number
- FR1375014A FR1375014A FR932208A FR932208A FR1375014A FR 1375014 A FR1375014 A FR 1375014A FR 932208 A FR932208 A FR 932208A FR 932208 A FR932208 A FR 932208A FR 1375014 A FR1375014 A FR 1375014A
- Authority
- FR
- France
- Prior art keywords
- loudspeaker
- intercommunication system
- simplex
- simplex intercommunication
- loudspeaker simplex
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR932208A FR1375014A (fr) | 1963-04-03 | 1963-04-22 | Installation d'intercommunication simplex à haut-parleurs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH422663A CH413915A (de) | 1963-04-03 | 1963-04-03 | Wechsel-Lautsprechanlage |
FR932208A FR1375014A (fr) | 1963-04-03 | 1963-04-22 | Installation d'intercommunication simplex à haut-parleurs |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1375014A true FR1375014A (fr) | 1964-10-16 |
Family
ID=25694961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR932208A Expired FR1375014A (fr) | 1963-04-03 | 1963-04-22 | Installation d'intercommunication simplex à haut-parleurs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1375014A (fr) |
-
1963
- 1963-04-22 FR FR932208A patent/FR1375014A/fr not_active Expired
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