FR941050A - Improvements to recording systems - Google Patents

Improvements to recording systems

Info

Publication number
FR941050A
FR941050A FR941050DA FR941050A FR 941050 A FR941050 A FR 941050A FR 941050D A FR941050D A FR 941050DA FR 941050 A FR941050 A FR 941050A
Authority
FR
France
Prior art keywords
recording systems
recording
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
Other languages
French (fr)
Inventor
Eric Malcolm Swift Mc Whirter
Hughe Jennings Ward
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR941050A publication Critical patent/FR941050A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/221—Local indication of seats occupied in a facility, e.g. in a theatre

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR941050D 1945-09-05 1947-01-16 Improvements to recording systems Expired FR941050A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB941050X 1945-09-05

Publications (1)

Publication Number Publication Date
FR941050A true FR941050A (en) 1948-12-30

Family

ID=10755714

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941050D Expired FR941050A (en) 1945-09-05 1947-01-16 Improvements to recording systems

Country Status (1)

Country Link
FR (1) FR941050A (en)

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