FR525251A - Montage pour téléphonie - Google Patents
Montage pour téléphonieInfo
- Publication number
- FR525251A FR525251A FR525251A FR525251DA FR525251A FR 525251 A FR525251 A FR 525251A FR 525251 A FR525251 A FR 525251A FR 525251D A FR525251D A FR 525251DA FR 525251 A FR525251 A FR 525251A
- Authority
- FR
- France
- Prior art keywords
- telephony
- installation
- 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
- 238000009434 installation Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
- H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
- H03C1/24—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to different grid
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL47378D DE379883C (de) | 1918-10-29 | 1918-10-29 | Schaltung zur Hochfrequenztelephonie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR525251A true FR525251A (fr) | 1921-09-17 |
Family
ID=7272008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR525251A Expired FR525251A (fr) | 1918-10-29 | 1920-09-30 | Montage pour téléphonie |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1652486A (fr) |
| DE (1) | DE379883C (fr) |
| FR (1) | FR525251A (fr) |
| GB (1) | GB149214A (fr) |
| NL (1) | NL10067C (fr) |
-
0
- NL NL10067D patent/NL10067C/xx active
-
1918
- 1918-10-29 DE DEL47378D patent/DE379883C/de not_active Expired
-
1920
- 1920-07-12 GB GB20961/20A patent/GB149214A/en not_active Expired
- 1920-09-30 FR FR525251A patent/FR525251A/fr not_active Expired
-
1921
- 1921-08-26 US US495781A patent/US1652486A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE379883C (de) | 1923-08-29 |
| GB149214A (en) | 1922-01-12 |
| NL10067C (fr) | |
| US1652486A (en) | 1927-12-13 |
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