Graphoplex
640
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| General | Manufacturer | Graphoplex | |
| Model number | 640 | ||
| Model name | |||
| Type | Darmstadt | ||
| Dimension of scales | 25 | ||
| Construction | Closed frame | ||
| Material | Plastic | ||
| Cursor | Plastic Magnifier | ||
| Scales | L,P,A[B,K,CI,C]D,LL3LL2LL1// ST S T C |
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| Scales | Front | Top line | cm |
| Top edge | |||
| Top | L,P,A | ||
| Slide | B,K,CI,C | ||
| Bottom | D,LL3LL2LL1 | ||
| Bottom edge | |||
| Bottom line | |||
| Back | Top | ||
| Slide | ST S T C | ||
| Bottom | |||
| Under slide | |||
| Other construction characteristic | Gauge points | p'',pi,p',R,d | |
| 1/10/100 or 1/1/1 | 1/10/100 | ||
| Scales change of division | 2/5//2/4 | ||
| Cursor lines front | 1,C,-C,HP/kW | ||
| Cursor lines back | |||
| Dimension | Width | 29.3 | |
| Height | 3.95 | ||
| Slide | 1.35 | ||
| Cursor | 4.22 | ||
| Depth | 0.54 | ||
| Weigth | 90 | ||
| Manifacture | Date | ||
| Country | France | ||
| Acquisition | Date | ||
| From | |||
| Price | |||
| Accesories | Case | Plastic | |
| Box | |||
| Instruction | |||
| Condition | Condition | C1 | |
| Catalogue number | GRP19 | ||