FR 20

This category in the French patent classification system appears to have lasted from 1858 to 1903. It's for Articles divers, meaning Miscellaneous (diverse) items.

This wiki has 13 patents in category "FR 20".

Patents in category FR 20

• Patent FR-1862-56491 (English title: Method of automatic and internal closure of balloons, rubber and otherwise, applicable to children's toys and nighttime aerial decorations, Inventors: Alexandre-Marie Quinet, Filing date: 1862-11-29)
• Patent FR-1865-67437 (English title: children's toy aerostat, called flying body with flapping wings, Inventors: Husson, Filing date: 1865-05-22)
• Patent FR-1857-30408 (English title: little fitted aerostats, Inventors: Jean Labille • Jean-Louis-Félix Manin, Filing date: 1857-01-03)
• Patent FR-1858-38829 (English title: Parachute-arrow toy, Inventors: Louis Sourbieu, Filing date: 1858-11-22)
• Patent FR-1858-39058 (English title: various aerostatic structural items with compressed air, Inventors: Louis-Alexandre Vallet, Filing date: 1858-12-09)
• Patent FR-1860-49097 (English title: Apparatus of aerial navigation, Inventors: Gustave-Louis-Marie de Ponton d'Amécourt, Filing date: 1860-04-03)
• Patent FR-1860-45940 (English title: Mode of aerial transport oriented above-all to the transportation of sugar cane from the colonies, Inventors: Ménardière, Filing date: 1860-05-14)
• Patent FR-1860-45451 (English title: Propeller system, Inventors: Auguste Prouvost, Filing date: 1860-06-06, Applicant firm: Auguste Prouvost)
• Patent FR-1861-51979.3 (English title: Complimentary applications necessary to the control of aerostats, Inventors: Auguste Prouvost, Supplementary to patent: Patent FR-1861-51979, Filing date: 1861-11-16)
• Patent FR-1861-51979 (English title: Complimentary applications necessary to the control of aerostats, Inventors: Auguste Prouvost, Filing date: 1861-11-16)
• Patent FR-1861-51979.1 (English title: Complimentary applications necessary to the control of aerostats, Inventors: Auguste Prouvost, Supplementary to patent: Patent FR-1861-51979, Filing date: 1861-11-16)
• Patent FR-1861-51979.2 (English title: Complimentary applications necessary to the control of aerostats, Inventors: Auguste Prouvost, Supplementary to patent: Patent FR-1861-51979, Filing date: 1861-11-16)
• Patent FR-1863-60908 (English title: Children's toy aerostat, Inventors: Hippolyte Langlois, Filing date: 1863-11-20)

Enclosing categories	French patent classifications
Subcategories
Keywords	not elsewhere classified
Start year	1858
End year	1903