FR972822A - Optical instrument for measuring angles - Google Patents

Optical instrument for measuring angles

Info

Publication number
FR972822A
FR972822A FR972822DA FR972822A FR 972822 A FR972822 A FR 972822A FR 972822D A FR972822D A FR 972822DA FR 972822 A FR972822 A FR 972822A
Authority
FR
France
Prior art keywords
optical instrument
measuring angles
angles
measuring
instrument
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.)
D INSTR DE PREC SOC IND
Original Assignee
D INSTR DE PREC SOC IND
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 D INSTR DE PREC SOC IND filed Critical D INSTR DE PREC SOC IND
Application granted granted Critical
Publication of FR972822A publication Critical patent/FR972822A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C1/00—Measuring angles
    • G01C1/02—Theodolites
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
FR972822D 1941-05-07 1941-05-07 Optical instrument for measuring angles Expired FR972822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972822T 1941-05-07

Publications (1)

Publication Number Publication Date
FR972822A true FR972822A (en) 1951-02-05

Family

ID=9516284

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972822D Expired FR972822A (en) 1941-05-07 1941-05-07 Optical instrument for measuring angles

Country Status (1)

Country Link
FR (1) FR972822A (en)

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