FR1048790A - Adjustable magnetic recorders - Google Patents

Adjustable magnetic recorders

Info

Publication number
FR1048790A
FR1048790A FR1048790DA FR1048790A FR 1048790 A FR1048790 A FR 1048790A FR 1048790D A FR1048790D A FR 1048790DA FR 1048790 A FR1048790 A FR 1048790A
Authority
FR
France
Prior art keywords
adjustable magnetic
magnetic recorders
recorders
adjustable
magnetic
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
David Bigelow Parkinson
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 FR1048790A publication Critical patent/FR1048790A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR1048790D 1950-07-17 1951-07-17 Adjustable magnetic recorders Expired FR1048790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1048790XA 1950-07-17 1950-07-17

Publications (1)

Publication Number Publication Date
FR1048790A true FR1048790A (en) 1953-12-23

Family

ID=22302886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1048790D Expired FR1048790A (en) 1950-07-17 1951-07-17 Adjustable magnetic recorders

Country Status (1)

Country Link
FR (1) FR1048790A (en)

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