DE222817C - - Google Patents

Info

Publication number
DE222817C
DE222817C DE1908222817D DE222817DD DE222817C DE 222817 C DE222817 C DE 222817C DE 1908222817 D DE1908222817 D DE 1908222817D DE 222817D D DE222817D D DE 222817DD DE 222817 C DE222817 C DE 222817C
Authority
DE
Germany
Prior art keywords
angle
division
scale
protractor
graduation
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
DE1908222817D
Other languages
German (de)
English (en)
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 filed Critical
Application granted granted Critical
Publication of DE222817C publication Critical patent/DE222817C/de
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
    • G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
    • G01B3/563—Protractors
    • 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
    • G01B3/02—Rulers with scales or marks for direct reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
DE1908222817D 1908-07-30 1908-07-30 Expired DE222817C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE222817T 1908-07-30

Publications (1)

Publication Number Publication Date
DE222817C true DE222817C (fr) 1910-06-07

Family

ID=33557948

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1908222817D Expired DE222817C (fr) 1908-07-30 1908-07-30

Country Status (1)

Country Link
DE (1) DE222817C (fr)

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