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bn:01956008n
Noun Concept
JA
No term available
EN
Genaille–Lucas rulers are an arithmetic tool invented by Henri Genaille, a French railway engineer, in 1891. Wikipedia
Relations
Sources
IS A
計算機
BASED ON
ネイピアの骨
DISCOVERER OR INVENTOR
エドゥアール・リュカ
NAMED AFTER
エドゥアール・リュカ

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