Difference between revisions of "Frederick William Dufwa"
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This might be him: https://www.ancestry.com/genealogy/records/fredrik-wilhelm-dufva-24-2xbv9y0 | This might be him: https://www.ancestry.com/genealogy/records/fredrik-wilhelm-dufva-24-2xbv9y0 | ||
| − | 2. | + | * 2. [[Patent CA-1908-115381]]: FLYING MACHINE, filing date: 1908-09-25, publication date: 1908-12-01 |
| − | + | * 4. [[Patent GB-1908-17877]] | |
| − | + | * 7. Improvements in Flying Machines. | |
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Inventor: | Inventor: | ||
DUFWA FREDERICK WILLIAM [MX] | DUFWA FREDERICK WILLIAM [MX] | ||
Revision as of 06:03, 9 August 2022
Frederick William Dufwa, sometimes written Fredrik Wilhelm Dufwa, was a physician and aero inventor in Mexico. In a 1908 patent he wrote that he was a citizen of Sweden, residing at 1040 Calle Tolsa, city of Mexico, Mexican Republic. In a 1909 patent he gave the address Calle de Durango 92, City of Mexico.
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. Improvements in Flying Machines.
Inventor: DUFWA FREDERICK WILLIAM [MX] Applicant: DUFWA FREDERICK WILLIAM [MX] CPC: B64C17/00 IPC: B64C1/00 B64C17/00 Publication info: GB190916367 (A) 1910-06-16 Priority date: 1909-07-13
9. DEVICE FOR MAINTAINING THE EQUILIBRIUM OF FLYING-MACHINES.
Inventor: DUFWA FREDERICK WILLIAM [MX] Applicant: DUFWA FREDERICK WILLIAM [MX] CPC: B64C17/00 IPC: Publication info: US1065033 (A) 1913-06-17 Priority date:
Patents whose inventor or applicant is Frederick William Dufwa or Fredrik Wilhelm Dufwa or Frederick 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 GB-1908-17877 (English title: Improvements relating to flying Machines, Supplementary to patent: Not identified yet, Filing date: 1908-08-25)
- Patent FR-1909-394168 (English title: Balancing equipment for flying machines, Supplementary to patent: Patent SE-1908-07-31, Filing date: 1908-08-29)
- 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-1910-1694 (English title: Improvements in flying machines, Filing date: 1909-07-13)
References
| Names | Frederick William Dufwa; Fredrik Wilhelm Dufwa; Frederick Dufwa |
|---|---|
| Birth date | |
| Death date | |
| Countries | SE, MX |
| Locations | Mexico City |
| Occupations | physician |
| Tech areas | Stability |
| Affiliations | |
| Wikidata id |
