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Hemmi 255 - Notes
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- This rule was advertised in the Hemmi catalogues as being for Electrical Engineering. It has conversion of angle,
hyperbolic function and vector scales.
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Details
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Further details about this Slide Rule:
| Brand |
Hemmi |
| Model |
255 - Electrical Engineering |
| Country of Manufacture |
Japan |
| Date of Manufacture |
Date code JF - 1959, June |
| Scales Front |
L, K, DF [CF, CIF, CI, C] D, LL3, LL2, LL1 |
| Scales Back |
Sh1, Sh2, Th, A [B,
TI2, TI2, SI, C] D, Χ, √ |
| Number of Scales |
23 |
| Slide Rule Materials |
Bamboo/Celluloid |
| Cursor Materials |
Metal/Glass |
| Cursor Lines |
1 Front, 1 Back |
| Scale Length |
25 cm |
| Length |
32 cm |
| Width |
45 cm |
| Condition |
Good |
| Documentation |
None |
| Accessories |
Leather Case |
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