Roger D. Swanstrom Jr.

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Buffalo, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Slide gate for an en-masse conveyor system
- Patent number 6,059,094
- Issue date May 9, 2000
- R.R. Howell Company
- Roger D. Swanstrom
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL