John K. Pethullis

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Holgate, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Discharge means for a silo
- Patent number 5,622,467
- Issue date Apr 22, 1997
- Portasilo Limited
- John K. Pethullis
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL