Dating K&E Slide Rules. Dating a particular k&e slide rule can be a challenge. Based on external clues from the body and cursor (although caution is needed there, as it may have been replaced), as well as case and manual details, and any copyright or patent dates, it is possible.
Polyphase Slide Rule K & E Drafting Leather Case Keuffel ... from i.ebayimg.com K + e slide rules by lyman morse kells, 1955, keuffel & esser edition, in english. Slide rules, also called slip sticks, consisted of two stationary rules and an interlocked central sliding rule with scaled numbers and a clear plastic cursor with k & e symbolized quality and integrity. K & e jetlog slide rule manual.
The slide rule, also known colloquially in the united states as a slipstick, is a mechanical analog computer.
K&e 4108 military slide rule c1950 made in u.s.a. Cast, financial news with rule is that english: However, the other side of that ruler has a detailed list and explanation of common notations in set theory! Analon k&e slide rule 681400 keuffel & esser c.
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