Streamwood, Illinois
United States
3
2020-10-29
The entities that hold a legal rights for patent applications filed by inventor McMahon Patrick William:
Patrick William McMahon from Streamwood, US has applied for patents for these inventions. The list has both pending applications and granted patents:
CONTROL SYSTEM FOR SIGNALS AT RAILROAD GRADE CROSSING
#2 | 2019-11-07Control system for signals at railroad grade crossings
#3 | 2019-10-31Guide wheel overload indicators
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