David E. E. Carmein

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Bloomington, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Omni-directional treadmill
- Patent number 6,152,854
- Issue date Nov 28, 2000
- David E. E. Carmein
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Virtual reality system with enhanced sensory apparatus
- Patent number 5,980,256
- Issue date Nov 9, 1999
- David E. E. Carmein
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL