Calculating Apparatus, Patent US3402285 [pdf]

Published: September 23, 2024

abstract-business-code-270348

Article URL: https://www.oughtred.org/jos/CalculatingApparatus-%20AnWang_PatentUS3402285_1964-1968.pdf

Comments URL: https://news.ycombinator.com/item?id=41621879

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