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Harold D. Koch — 2 Patents

Gann Valley, SD: #1 of 1 inventorsTop 100%

South Dakota: #678 of 2,308 inventorsTop 30%

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2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4366923	Snap-in tire carrier	—	1983-01-04
D258088	Portable concrete fence support	—	1981-01-27