William C. Orthwein

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Carbondale, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Clip-on dental restoration and tools for removing same
- Patent number 4,060,898
- Issue date Dec 6, 1977
- William C. Orthwein
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Clip-on dental restoration and tools for removing same
- Patent number 4,059,900
- Issue date Nov 29, 1977
- William C. Orthwein
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE