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- houmei Museum
- 1F 計算機
- HP 20b Business Calculator
HP 20b Business Calculator
HPの金融電卓。入力方式はChain/ALG/RPN。二行表示。
https://support.hp.com/jp-ja/product/hp-20b-business-consultant-financial-calculator/3732534/manuals
BATT: CR2032 x2
#HP #RPN #金融電卓
HPの金融電卓。入力方式はChain/ALG/RPN。二行表示。
https://support.hp.com/jp-ja/product/hp-20b-business-consultant-financial-calculator/3732534/manuals
BATT: CR2032 x2
#HP #RPN #金融電卓
