FR994215A - Electrical device indicating a frequency difference - Google Patents

Electrical device indicating a frequency difference

Info

Publication number
FR994215A
FR994215A FR994215DA FR994215A FR 994215 A FR994215 A FR 994215A FR 994215D A FR994215D A FR 994215DA FR 994215 A FR994215 A FR 994215A
Authority
FR
France
Prior art keywords
electrical device
frequency difference
device indicating
indicating
frequency
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
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Application granted granted Critical
Publication of FR994215A publication Critical patent/FR994215A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/12—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR994215D 1948-09-03 1949-08-30 Electrical device indicating a frequency difference Expired FR994215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB994215X 1948-09-03

Publications (1)

Publication Number Publication Date
FR994215A true FR994215A (en) 1951-11-14

Family

ID=10867242

Family Applications (1)

Application Number Title Priority Date Filing Date
FR994215D Expired FR994215A (en) 1948-09-03 1949-08-30 Electrical device indicating a frequency difference

Country Status (1)

Country Link
FR (1) FR994215A (en)

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