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When did Theophilus Van Kannel die?
Heart failure
Who invented the revolving door?
Theophilus Van Kannel of Philadelphia
Good info on theophilus van kannel?
it is very good !
What was Theophilus Van Kannel's first invention?
Theo's first invention was the ONY. This became so popular that people gave him credit by calling it KannelONY. His second invention was a type of dog food, which was called Kannel Ration.
When was the revolving door invented?
The revolving door was invented in 1888 by Theophilus Van Kannel of Philadelphia, Pennsylvania. in high-rise buildings, regular doors are hard to open because there is a slight vacuum caused by air flowing upwards through stairwells, elevator shafts, and chimneys. Van Kannel's new type of door was easy to open in tall building (and also saved heat in the winter). Van Kannel patented the revolving door on August 7, 1888
When did Theophilus Higgons die?
Theophilus Higgons died in 1659.
When did Theophilus Cazenove die?
Theophilus Cazenove died in 1811.
When did Theophilus Harrington die?
Theophilus Harrington died in 1815.
When did Theophilus Cibber die?
Theophilus Cibber died in 1758.
When did Theophilus of Adana die?
Theophilus of Adana died in 538.
When did Theophilus of Antioch die?
Theophilus of Antioch died in 181.
When did Theophilus Riesinger die?
Theophilus Riesinger died in 1941.
