FOULLON, Abel (1514 - 1563)

Author, french director of the Mint for Henry II of France and also an engineer to the king of France after Leonardo da Vinci.

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 "Usage & Description de l'holomètre". Publication was delayed until after the patent expired in 1561.

variant spelling:
FOULLON, Abel

History

* 1514	Loué	born
1555		Détenteur du premier brevet accordé pour l'invention de l’holomètre : cet instrument est formé de trois billes mobiles dont l'écartement permet d'atteindre les longueurs des côtés et les angles d'un triangle.
† 1563	Orléans	died

Collections

Early modern times, ca. 1500-1780

Literature

Usage et description de l'holomètre pour savoir mesurer toutes choses qui sont sous l'etendue de l'oeil.
Author: FOULLON, Abel
Published: 1555

Permanent links

DMG-Lib		https://www.dmg-lib.org/dmglib/handler?biogr=24753004
Europeana		http://www.europeana.eu/portal/record/2020801/dmglib_handler_biogr_24753004.html

Follow us

Newsletter

FOULLON, Abel (1514 - 1563)