George Alphonzo Metcalf
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George Alphonzo Metcalf was a helicopter inventor and real estate dealer. He filed a British patent from No. 75, Washington Street, Malden, Middlesex county, Massachusetts, USA.
A historical source shows him and apparently his wife as members of the First Church of Malden as of 1868; based on the timing, perhaps this is his father though.[1]
A German translation of his British patent title is available in a Jahrbook.[2]
Patents whose inventor or applicant is George Alphonzo Metcalf or George Alphonso Metcalf
- Patent US-1905-908794 (English title: Aeronautic apparatus, Filing date: 1905-10-16)
- Patent GB-1909-205 (English title: Improvements in Aeronautic Apparatus, Filing date: 1909-01-04)
- Patent FR-1909-398288 (English title: Aerial helicopter, Filing date: 1909-01-05)
- Patent CA-1909-125915 (English title: Aeronautic apparatus, Supplementary to patent: Patent US-1909-908794 • Patent FR-1909-398288, Filing date: 1909-12-13)
References
- ↑ https://books.google.com/books?id=jVcZAAAAYAAJ&lpg=PA28&ots=7eHDuflo_2&dq=George%20Alphonzo%20Metcalf&pg=PA28#v=onepage&q=George%20Alphonzo%20Metcalf&f=false
- ↑ https://books.google.com/books?id=ELedDAAAQBAJ&lpg=PA140&ots=qa-YGxocQ3&dq=George%20Alphonzo%20Metcalf&pg=PA140#v=onepage&q=George%20Alphonzo%20Metcalf&f=false
| Names | George Alphonzo Metcalf; George Alphonso Metcalf |
|---|---|
| Birth date | |
| Death date | |
| Countries | US |
| Locations | Massachusetts; Malden |
| Occupations | |
| Tech areas | Helicopter |
| Affiliations | |
| Wikidata id |
