Jean-Louis Le Hir
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Jean-Louis Le Hir was an aero inventor, with occupation -- (19, rue de la Sourdière, Seine)
Patents whose inventor or applicant is Jean-Louis Le Hir
- Patent FR-1855-24329 (English title: Dirigible construction and navigation, Filing date: 1855-07-30)
- Patent FR-1856-24329.1 (English title: dirigible construction and navigation, Supplementary to patent: Patent FR-1855-24329, Filing date: 1856-07-28)
- Patent FR-1863-61156 (English title: balloon construction and steering, Filing date: 1863-11-28)
References
Subject-matter Index of Patents for Invention, France, 1791-1876 Inclusive (listed as "Lehir" in this Anglophone compilation)
("HIR" is more fruitfully searchable, paging via patent numbers)