Cărți în limba engleză > Spiral Slide Rule: Equivalent to a Straight Slide Rule 83 Feet 4 Inches Long, Or, a Circular Rule 13 Feet 3 Inches in Diameter
Spiral Slide Rule: Equivalent to a Straight Slide Rule 83 Feet 4 Inches Long, Or, a Circular Rule 13 Feet 3 Inches in Diameter