djpt2The fire hydrant patent was lost in a fire.
The fire hydrant patent is credited to Frederick Graff Sr., who was the chief engineer for Philadelphia Water Works during the early 1800s. Unfortunately for Graff Sr., the patent was destroyed when the patent office in Washington, D.C., burned down in 1836. After 100 years, retired firefighter GeorgeSigelakis reinvented the hydrant after they had been failing to work in too many critical emergencies.
HAGW all.
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djpt2 The fire hydrant patent was lost in a fire.The fire...
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