Ten Custom Slide Rules and Math Tables: Before

Updated September 24, 2026

Digital Calculators, slide rules and fit for use Slide Calculators like these is how math was done to avoid manual math calculations. Also in some cases the data was placed in tables and a few of these are included. Finally for Bridge Card Game a calculator was done to help in bidding your hand. 1. Amp Terminal Selector Guide. 2. Bearing Selector for 48 use cases. 3. Stainless Steel Selector 4. Specialty Tubing Selector. 5. Tool Steel Identifier. 6. Lightnin mixing products 7. Geometric Dimensioning and Tolerance tables. 8. Valve Sizing Tables and Calculations 9. Steel and Aluminum Selector and Decimal Equivalent Table. 10. Goren Bridge Card Game Bidding Wheel.

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