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When did Theophilus Van Kannel die?
Heart failure
Good info on theophilus van kannel?
it is very good !
Who invented the revolving door?
Theophilus Van Kannel of Philadelphia
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 Andrews die?
Theophilus Andrews died in 1670.
When did Theophilus Dillingham die?
Theophilus Dillingham died in 1678.
When did Theophilus of Edessa die?
Theophilus of Edessa died in 785.
When did Theophilus Lindsey die?
Theophilus Lindsey died in 1808.
When did Theophilus Painter die?
Theophilus Painter died in 1969.
When did Theophilus Waldmeier die?
Theophilus Waldmeier died in 1915.
When did Theophilus Eaton die?
Theophilus Eaton died in 1658.
