FR606639A - Improvements to recording instruments - Google Patents

Improvements to recording instruments

Info

Publication number
FR606639A
FR606639A FR606639DA FR606639A FR 606639 A FR606639 A FR 606639A FR 606639D A FR606639D A FR 606639DA FR 606639 A FR606639 A FR 606639A
Authority
FR
France
Prior art keywords
recording instruments
instruments
recording
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.)
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 FR606639A publication Critical patent/FR606639A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR606639D 1924-09-08 1925-09-08 Improvements to recording instruments Expired FR606639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US606639XA 1924-09-08 1924-09-08

Publications (1)

Publication Number Publication Date
FR606639A true FR606639A (en) 1926-06-17

Family

ID=22030989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR606639D Expired FR606639A (en) 1924-09-08 1925-09-08 Improvements to recording instruments

Country Status (1)

Country Link
FR (1) FR606639A (en)

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