Interested in finding out more out about such calculating wonders?
Then try one of the slide rule related articles (often light-hearted) I have published.
Go to the search papers page.
You searched for: CONCISE (K.K. Konsaisu) | |||||
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Model | Type | Material | Comments | Thumbnail | |
26A | Pocket Enhanced Mannheim without Trig scales - early | plastic/metal | Combined slide rule/slide chart specially commissioned by Japanese engineering company Chiyoda + conversion factors on back + removable data card with weight, length, square (area) & cubic/capacity conversion tables |
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271 | Rietz-like | plastic/metal | Specially commissioned by office equipment company TAMAYA |
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28 | Pocket Enhanced Mannheim without Trig scales | plastic/metal | Specially commissioned by Japanese drawing instruments company Takeda + conversion factors on back + double-sided cursor is superfluous as nothing to calculate on back |
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28N | Pocket Enhanced Mannheim without Trig scales (ver. 1) | plastic/metal | Minor differences to earlier model 28 = simplex cursor & CI scale in red + fan-style conversion factors on back |
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28N | Pocket Enhanced Mannheim without Trig scales (ver. 2) | plastic/metal | Minor differences to earlier model 28 = simplex cursor & CI scale in red + table-style conversion factors on back - specially commissioned by defunct Austrian company NORMA |
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32 | Keyring Basic/Perpetual Calendar | plastic/metal | Printed Patent no. 479446 + perpetual calendar (only for 1960 to 1981) |
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600 | Pocket Chemical | plastic/metal | Combined slide rule/slide chart designed by SAMA & ETANI & specially commissioned by Dutch oil major Shell +periodic table of elements on back + removable data card with length, area, weight, decimal equivalents, volume, velocity, flow rates, gas constants, energy & pressure conversion tables |
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CTCS-552 | Pocket Chemical | plastic/metal | Combined slide rule/slide chart designed by SAMA & ETANI & specially commissioned by American chemicals company DOW + table of elements & temperature conversion chart on back + removable data card with length, area, weight, decimal equivalents, volume, velocity, flow rates, gas constants, energy & pressure conversion tables - CTCS model name prefix = Conversion Tables & Circular Slide Rule |
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EE-112 | Pocket Electronic | plastic/metal | Combined slide rule/slide chart designed by SAMA & ETANI & specially commissioned by American engineering company Brown & Root Inc. + reactance nomogram on back + removable data card with length, weight, area, volume, energy power & velocity conversion tables - EE model name prefix = Engineering & Electronic |
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Herman van Herwijnen | Pocket Stadia Topography | plastic/metal | Specially commissioned memorial edition by defunct online group ISRG for late HvH (1929-2004) + lookup table for correcting distance measurements on front |