William Everett Sylvester Coyne

William Everett Sylveste Coyne was an aero inventor and dentist from Spokane, Washington, USA. He filed patents for a helicopter design in Mexico, Canada, Great Britain and France. We don't have a US patent for this invention; it's possible he submitted one but it was never granted or completed. This person had 0 publications and 4 patents in this database.

Patents whose inventor or applicant is William Everett Sylvester Coyne

• Patent MX-1910-10953 (English title: An air ship)
• Patent GB-1910-20786 (English title: Aerial Vessels, Filing date: 1910-09-06)
• Patent FR-1911-420180 (English title: Air ships, Filing date: 1910-09-09)
• Patent CA-1910-130926 (English title: Aerial Vessel, Filing date: 1911-02-07)

References

Names	William Everett Sylveste Coyne
Countries	US
Locations	Spokane, Washington
Occupations	dentist
Tech areas	Helicopter
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