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.)
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SIGMA INSTR CO Ltd
Original Assignee
SIGMA INSTR CO Ltd
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Filing date
Publication date
Application filed by SIGMA INSTR CO LtdfiledCriticalSIGMA INSTR CO Ltd
Application grantedgrantedCritical
Publication of FR927128ApublicationCriticalpatent/FR927128A/en
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
G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
FR927128D1941-11-101946-05-21
Improvements to measuring devices and indicators
ExpiredFR927128A
(en)