1. This slide rule is used to find presure loss for streamline flow.
2. The complete instructions are given on the face of the rule.
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Catalogue of Mear's slide rules
| Make | Mear's, United Kingdom |
| Model | Streamline flow calculator |
| Notes 1. This slide rule is used to find presure loss for streamline flow. 2. The complete instructions are given on the face of the rule. |
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| Front view |
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| Detail - Instructions |
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| Detail - part of cursor |
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| Manufacturing date | c 1980 |
| Length | 14 cm (5.5 inches) |
| Material | Plastic |
| Scales | Special |
| Cursor | None |