Hyperbolic Match Output



Model: 4-T Dual-Base Log Log (Vector Hyperbolic)


Scales Front:||Three cube root scales 3√, DF|| CF, T&T, ST, S&S, CI, C || D, DI, Two sqrt scales √ ||

Scales Back: || LL1&LL1, LL2&LL2, DF/M || CF/M, Th, Sh&Sh, L, CI, C || D, LL3&LL3, LL4&LL4 ||

Gauge Marks: π is on C, D, CF, DF, CF/M, DF/M, CI, DI, CIF ; R and π/4 are on C & D; marks 1° , ' and " are on ST.

Cursor Front:

Cursor Back:

Construction: 25 cm.; White plastic film over Aluminum, Cursor is not framed, Adjustable metal brackets.


Source: ISRM

Information: Same rule but different colors as Model 4-ES Dual-Base Log Log (Vector Hyperbolic) whichas a yellow plastic film over Aluminum.