William STROHFELDT

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Fairmont, MN, US

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Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS FOR RAILROAD SWITCH POSITION DETECTION
- Publication number 20200399836
- Publication date Dec 24, 2020
- HARSCO TECHNOLOGIES LLC
- Daniel ZAMPINI
- B61 - RAILWAYS
Information Patent Application
TRAIN DETECTOR FOR EMBEDDED RAIL
- Publication number 20200111360
- Publication date Apr 9, 2020
- HARSCO TECHNOLOGIES LLC
- Mike ZAMPINI
- G08 - SIGNALLING