FR442463A - Improvements in tachometers - Google Patents

Improvements in tachometers

Info

Publication number
FR442463A
FR442463A FR442463DA FR442463A FR 442463 A FR442463 A FR 442463A FR 442463D A FR442463D A FR 442463DA FR 442463 A FR442463 A FR 442463A
Authority
FR
France
Prior art keywords
tachometers
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
John Norman Matheson
William Maxwell Bruce
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 FR442463A publication Critical patent/FR442463A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/12—Recording devices
    • G01P1/122—Speed recorders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR442463D 1912-04-11 1912-04-11 Improvements in tachometers Expired FR442463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR442463T 1912-04-11

Publications (1)

Publication Number Publication Date
FR442463A true FR442463A (en) 1912-09-02

Family

ID=1483625

Family Applications (1)

Application Number Title Priority Date Filing Date
FR442463D Expired FR442463A (en) 1912-04-11 1912-04-11 Improvements in tachometers

Country Status (1)

Country Link
FR (1) FR442463A (en)

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