Theophilus Van Kannel
American engineer (1841-1919) · United States · On the map · Scientists · Died at 78
Theophilus Van Kannel was an American inventor, known for inventing the revolving door, patented on August 7, 1888.
Theophilus Van Kannel is read about 9 times a day, in 13 languages.
A typical day, 30 days to 7 July 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
Country
United States
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1841 to 1919 · aged 78
