Hand manipulated computing devices

GPHYSICS G06Computing G06GANALOGUE COMPUTERS

G06G1/00Hand manipulated computing devices

G06G1/0005characterised by a specific application G06G1/001for medical purposes, for biological purposes G06G1/0015for computing periodic phenomena G06G1/0021for civil engineering G06G1/0026for machining G06G1/0031for hydraulics G06G1/0036for electricity, for electronics G06G1/0042for optics, for photography G06G1/0047for printing G06G1/0052for air navigation or sea navigation G06G1/0057for gun laying, for bomb aiming G06G1/0063for calculating fuel consumption G06G1/0068for conversion from one unit system to another G06G1/0073for commerce, bank or invoicing G06G1/0078for calculating interests G06G1/0084for calculating earned incomes G06G1/0089for calculating taxes G06G1/0094for trigonometric computations G06G1/02Devices in which computing is effected by adding, substracting, or comparing lengths of parallel or concentric graudated scales G06G1/025decimal point positioning devices G06G1/04characterised by construction G06G1/045with scales borne by bands G06G1/06with rectilinear scales G06G1/065construction of the cursor G06G1/08with circular or helical scales G06G1/085borne by a cylinder G06G1/10characterised by the graduation G06G1/105linear graduations G06G1/12Logarithmic graduations G06G1/14in which a straight or curved line has to be drawn from given points on one or more input scales to one or more points on a result scale G06G1/16in which a straight or curved line has to be drawn through related points on one or more families of curves