German circular slide-rule, type KRS 40, No.1246,
- Made:
- Germany
German circular slide-rule, type KRS 40, No.1246, 17 1/2 inches diameter, fitted in a metal case 18 1/2 x 20 inches
Details
- Category:
- Mathematics
- Object Number:
- 1965-79
- type:
- circular slide rule
- credit:
- National Physical Laboratory
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