FR492701A - Improvements to electrical signal devices - Google Patents

Improvements to electrical signal devices

Info

Publication number
FR492701A
FR492701A FR492701DA FR492701A FR 492701 A FR492701 A FR 492701A FR 492701D A FR492701D A FR 492701DA FR 492701 A FR492701 A FR 492701A
Authority
FR
France
Prior art keywords
electrical signal
signal devices
devices
electrical
signal
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)
Inventor
Foster Ritchie
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR492701A publication Critical patent/FR492701A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
FR492701D 1916-05-29 1916-11-09 Improvements to electrical signal devices Expired FR492701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB492701X 1916-05-29

Publications (1)

Publication Number Publication Date
FR492701A true FR492701A (en) 1919-07-17

Family

ID=1528537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR492701D Expired FR492701A (en) 1916-05-29 1916-11-09 Improvements to electrical signal devices

Country Status (1)

Country Link
FR (1) FR492701A (en)

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