FR499211A - Improvements to signaling systems - Google Patents
Improvements to signaling systemsInfo
- Publication number
- FR499211A FR499211A FR499211A FR499211DA FR499211A FR 499211 A FR499211 A FR 499211A FR 499211 A FR499211 A FR 499211A FR 499211D A FR499211D A FR 499211DA FR 499211 A FR499211 A FR 499211A
- Authority
- FR
- France
- Prior art keywords
- signaling systems
- signaling
- systems
- 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
- 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
- H03C1/20—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to anode
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US233561A US1404756A (en) | 1918-05-09 | 1918-05-09 | Signaling system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR499211A true FR499211A (en) | 1920-02-04 |
Family
ID=22877733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR499211A Expired FR499211A (en) | 1918-05-09 | 1919-05-08 | Improvements to signaling systems |
Country Status (2)
Country | Link |
---|---|
US (1) | US1404756A (en) |
FR (1) | FR499211A (en) |
-
1918
- 1918-05-09 US US233561A patent/US1404756A/en not_active Expired - Lifetime
-
1919
- 1919-05-08 FR FR499211A patent/FR499211A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1404756A (en) | 1922-01-31 |
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