Abel Foullon (1513–1563 or 1565, in France) was an author, director of the

Mint MiNT is Now TOS (MiNT) is a free software alternative operating system kernel for the Atari ST system and its successors. It is a multi-tasking alternative to TOS and MagiC. Together with the free system components fVDI device drivers, XaA ...

for

Henry II of France Henry II (french: Henri II; 31 March 1519 – 10 July 1559) was King of France from 31 March 1547 until his death in 1559. The second son of Francis I and Duchess Claude of Brittany, he became Dauphin of France upon the death of his elder bro ...

and also an engineer to the king of France after

Leonardo da Vinci Leonardo di ser Piero da Vinci (15 April 14522 May 1519) was an Italian polymath of the High Renaissance who was active as a painter, Drawing, draughtsman, engineer, scientist, theorist, sculptor, and architect. While his fame initially res ...

His Holometer is an instrument for making of angular measurements for surveying. In 1551, Henry II granted Abel a 10-year exclusive

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A ...

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

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

External links

* http://wissensgeschichte.biblhertz.it/Glossario/Glossario_Italiano/olometro/ * https://web.archive.org/web/20070929202456/http://www.nv-landsurveyors.org/files/Topographic_Mapping_ACSM_Student_Competition.pdf {{DEFAULTSORT:Foullon, Abel 1513 births 1560s deaths French engineers