FR499211A - Improvements to signaling systems - Google Patents

Improvements to signaling systems

Info

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
Application number
FR499211A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR499211A publication Critical patent/FR499211A/en
Expired legal-status Critical Current

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
FR499211A 1918-05-09 1919-05-08 Improvements to signaling systems Expired FR499211A (en)

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)

Also Published As

Publication number Publication date
US1404756A (en) 1922-01-31

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