FR1105542A - Method and devices for intercommunication between plasionts telephone lines not electrically connected - Google Patents
Method and devices for intercommunication between plasionts telephone lines not electrically connectedInfo
- Publication number
- FR1105542A FR1105542A FR1105542DA FR1105542A FR 1105542 A FR1105542 A FR 1105542A FR 1105542D A FR1105542D A FR 1105542DA FR 1105542 A FR1105542 A FR 1105542A
- Authority
- FR
- France
- Prior art keywords
- plasionts
- intercommunication
- devices
- electrically connected
- telephone lines
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1105542T | 1954-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1105542A true FR1105542A (en) | 1955-12-05 |
Family
ID=9623452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1105542D Expired FR1105542A (en) | 1954-05-26 | 1954-05-26 | Method and devices for intercommunication between plasionts telephone lines not electrically connected |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1105542A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4162373A (en) * | 1978-06-29 | 1979-07-24 | Systems Consultants, Inc. | Flexible acoustic coupler |
-
1954
- 1954-05-26 FR FR1105542D patent/FR1105542A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4162373A (en) * | 1978-06-29 | 1979-07-24 | Systems Consultants, Inc. | Flexible acoustic coupler |
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