Rodney R. Hannula

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Maplewood, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Oil-resistant closure system
- Patent number 4,372,460
- Issue date Feb 8, 1983
- Minnesota Mining and Manufacturing Company
- Wilfred R. Brochman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Center venting closure system
- Patent number 4,135,637
- Issue date Jan 23, 1979
- Minnesota Mining and Manufacturing Company
- Rodney R. Hannula
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL