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Abel Foullon

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Name  Abel Foullon

Died  1563, Orleans, France
Abel Foullon

Abel Foullon; France, (1513–1563 or 1565) was an author, director of the Mint for Henry II of France and also an engineer to the king of France after Leonardo da Vinci.

Abel Foullon Abel Foullon Wikipedia

His Holometer is an instrument for making of angular measurements for surveying. In 1551, Henry II granted Abel a 10-year exclusive patent monopoly on the holometer in exchange for publishing a description of it. A description of an invention in a patent is called a patent “specification”. This first patent specification was entitled "Usaige & Description de l'holmetre". Publication was delayed until after the patent expired in 1561.


Abel Foullon Wikipedia

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