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
Links
- 241001523162 Helle Species 0.000 description 1
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE475980A true BE475980A (enExample) |
Family
ID=124501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE475980D BE475980A (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE475980A (enExample) |
-
0
- BE BE475980D patent/BE475980A/fr unknown
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