John E. DOLNIK

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PLEASANT PRAIRIE, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Mechanism for operating a railcar discharge gate assembly
- Patent number 10,562,546
- Issue date Feb 18, 2020
- Miner Enterprises, Inc.
- John E. Dolnik
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
MECHANISM FOR OPERATING A RAILCAR DISCHARGE GATE ASSEMBLY
- Publication number 20190176855
- Publication date Jun 13, 2019
- John E. DOLNIK
- B61 - RAILWAYS