Abel Foullon

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

*Usaige et description de l'holomètre*, 1567^[1]

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.^[2]

Bibliography

Abel Foullon, Usage et description de l'holomètre, Paris: P. Béguin, 1567.
Chevalier de Brunet-Varennes: Holometer, oder neues sehr genaues Instrument, um Zeichnungen in der Geometrie, so wie alle Zeichnungen nach der Perspectiv-Kunst zu erleichtern. 15 S. Mit 1 Taf. In: Polytechnisches Journal. Hrsg. J. G. Dingler. Bd. 34.; Erschienen: Stuttgart, Cotta, 1829.

References

^ L'usage & description de l'holometre. Paris (France) Pierre Béguin (libraire, 15..-15..), 1567 sur Biblissima
^ M. Frumkin, "The Origin of Patents", Journal of the Patent Office Society, March 1945, Vol. XXVII, No. 3, pp 143 et Seq.

External links

Media related to Abel Foullon at Wikimedia Commons

[1] L'usage & description de l'holometre. Paris (France) Pierre Béguin (libraire, 15..-15..), 1567 sur Biblissima

[2] M. Frumkin, "The Origin of Patents", Journal of the Patent Office Society, March 1945, Vol. XXVII, No. 3, pp 143 et Seq.

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