board rule
noun1
A scale marked with numbers, used for finding without calculation the area (in square feet) of a (wooden) board.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
A scale marked with numbers, used for finding without calculation the area (in square feet) of a (wooden) board.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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