FR499378A - Improvements in precision measuring instruments, such as writing micrometers, gauges and the like - Google Patents

Improvements in precision measuring instruments, such as writing micrometers, gauges and the like

Info

Publication number
FR499378A
FR499378A FR499378DA FR499378A FR 499378 A FR499378 A FR 499378A FR 499378D A FR499378D A FR 499378DA FR 499378 A FR499378 A FR 499378A
Authority
FR
France
Prior art keywords
gauges
micrometers
writing
measuring instruments
precision measuring
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
Ernest Sidwell
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 FR499378A publication Critical patent/FR499378A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/18—Micrometers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR499378D 1919-01-27 1919-05-10 Improvements in precision measuring instruments, such as writing micrometers, gauges and the like Expired FR499378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB499378X 1919-01-27

Publications (1)

Publication Number Publication Date
FR499378A true FR499378A (en) 1920-02-10

Family

ID=1534432

Family Applications (1)

Application Number Title Priority Date Filing Date
FR499378D Expired FR499378A (en) 1919-01-27 1919-05-10 Improvements in precision measuring instruments, such as writing micrometers, gauges and the like

Country Status (1)

Country Link
FR (1) FR499378A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741060C (en) * 1937-07-30 1943-11-03 Winter & Sohn Ernst Measuring device for setting the cutting edge of tool diamonds on boring bars and similar tool holders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741060C (en) * 1937-07-30 1943-11-03 Winter & Sohn Ernst Measuring device for setting the cutting edge of tool diamonds on boring bars and similar tool holders

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