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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 Dillingham die?
Theophilus Dillingham died in 1678.
When did Theophilus Cooper die?
Theophilus Cooper died in 1925.
When did Theophilus Evans die?
Theophilus Evans died in 1767.
When did Theophilus Gale die?
Theophilus Gale died in 1678.
When did Theophilus Leigh die?
Theophilus Leigh died in 1785.
When did Theophilus Blakeney die?
Theophilus Blakeney died in 1813.
When did Theophilus Andrews die?
Theophilus Andrews died in 1670.
