FR 17.3
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| Enclosing categories | FR 17, French patent classifications, Classifications of French patents, 1904-1958 |
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| Subcategories | |
| Keywords | Photography |
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This wiki has 4 patents in category "FR 17.3".
Patents in category FR 17.3
- Patent FR-1919-524175 (English title: Device for creating cadastral plans using aerial photography, Inventors: Paul-Marie-Joseph Borel, Filing date: 1919-09-18)
- Patent FR-1903-333109 (English title: Rocket apparatus for photography, Inventors: Alfred Maul, Filing date: 1903-06-16)
- Patent FR-1912-442633 (English title: Panoramic photography apparatus, Inventors: Auguste-Blaise Baron • Paul-Eugène Mesplès, Filing date: 1912-04-17)
- Patent FR-1912-449074 (English title: Automatic device for aerial photography, Inventors: Auguste-Blaise Baron • Charles-Marie-Arthur Guinard, Filing date: 1912-10-05)
