F.111 Data Sheet MJS-p-0152

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Hemmi, 255, 1952

Serial Number or Date Stamp: CB

Country: JPN

Primary construction material: bb

Case included?: no

General Description: Advanced linear log-log vector/hyperbolic duplex slide rule

Length of 1 decade = 10 in, and overall scale length = 10 in. The largest physical dimension is 10 in.

Front Scales: L K DF [ CF CIF CI C ] D x theta

Back Scales: Sh1 Sh2 Th A [ B TI2 TI1 SI C ] D LL3 LL2 LL1

Notes: Vector rule; for Expert Electrical Engineer

References: https://www.sliderulemuseum.com/Hemmi.htm

Date Acquired: 09/10/2020