BE475980A - - Google Patents

Info

Publication number
BE475980A
BE475980A BE475980DA BE475980A BE 475980 A BE475980 A BE 475980A BE 475980D A BE475980D A BE 475980DA BE 475980 A BE475980 A BE 475980A
Authority
BE
Belgium
Prior art keywords
roll
length
tape
film
graduation
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE475980A publication Critical patent/BE475980A/fr

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
    • G01B3/02—Rulers with scales or marks for direct reading
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
BE475980D BE475980A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE475980A true BE475980A (enrdf_load_stackoverflow)

Family

ID=124501

Family Applications (1)

Application Number Title Priority Date Filing Date
BE475980D BE475980A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE475980A (enrdf_load_stackoverflow)

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