Frederick William Dufwa
Frederick William Dufwa, sometimes written Fredrik Wilhelm Dufwa, was a physician and aero inventor of Swedish origins whom we generally have located in Mexico City.
In an American patent filed in 1908 patent he wrote that he was a citizen of Sweden, residing at 1040 Calle Tolsa, city of Mexico, Mexican Republic.[1]
Particular British patent data has him addressed at No. 1040, Calle Tolsa, City of Mexico, Mexican Republic, and as a Physician on the Staff of the General Hospital.[2]
In slightly later data he gave the address Calle de Durango 92, City of Mexico.[3]
He had a Swedish patent, and one of his later ones is a child of that one.
Here is a Swede with his name who moved to Mexico: [1] This might be him: https://www.ancestry.com/genealogy/records/fredrik-wilhelm-dufva-24-2xbv9y0
- 2. Patent CA-1908-115381: FLYING MACHINE, filing date: 1908-09-25, publication date: 1908-12-01
- 4. Patent GB-1908-17877
- 7. Patent GB-1909-16367
This person had 0 publications and 11 patents in this database.
Patents whose inventor or applicant is Frederick William Dufwa or Fredrik Wilhelm Dufwa or Frederick Dufwa or Friedrich Wilhelm Dufwa
- Patent US-1901-694356 (English title: Blade for propellers for air-ships, Filing date: 1901-05-15)
- Patent US-1908-1065033 (English title: Device for maintaining the equilibrium of flying-machines, Filing date: 1908-08-12)
- Patent CA-1908-115381 (English title: Flying Machine, Filing date: 1908-09-25)
- Patent GB-1908-17877 (English title: Improvements relating to flying Machines, Supplementary to patent: Not identified yet, Filing date: 1908-08-25)
- Patent DE-1908-244821 (English title: Airplane with Gondola suspended from wings by perpendicular turning axles, Filing date: 1908-08-28)
- Patent SE-1908-29342 (English title: Balancing device for flying machines, Filing date: 1908-07-31)
- Patent FR-1908-394168 (English title: Balancing equipment for flying machines, Supplementary to patent: Patent SE-1908-29342, Filing date: 1908-08-29)
- Patent MX-1908-8050 (English title: Improvements in machine to fly)
- Patent GB-1909-1443 (English title: Wing beam construction on flying machines, Filing date: 1909-07-13)
- Patent GB-1909-16367 (English title: Improvements in Flying Machines, Filing date: 1909-07-13)
- Patent GB-1909-1694 (English title: Improvements in flying machines, Filing date: 1909-07-13)
References
| Names | Frederick William Dufwa; Fredrik Wilhelm Dufwa; Frederick Dufwa; Friedrich Wilhelm Dufwa; Federico W. Dufwa |
|---|---|
| Countries | SE, MX |
| Locations | México, D.F. |
| Occupations | physician |
| Tech areas | Stability, Biplane, Rudder, HTA |
| Accreditations | |
| Affiliations | General Hospital of Mexico City |
| Family name | |
| Birth date | |
| Death date | |
| Wikidata id |
