- LandOfFree
- Inventors
- Railway switches and signals
- Miscellaneous
- Signals and indicators
Details
Frank Huchrowski
Frank
Huchrowski
- Patent Class
Railway switches and signals
- SubClass
Miscellaneous
- SubSubClass
Signals and indicators
- Specialty
Inventor
- Status
active
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Profile ID: LFUS-PAI-P-157867
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