John E. Ingalls — 1 Patent | Patent Leaderboard

John E. Ingalls has been granted 1 US patent. All of these patents were granted in 1986. John E. Ingalls ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John E. Ingalls in Whitehall, MI, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4628171	Mechanical feed EDM machine for making threaded and nonthreaded bores	Lloyd E. Colby	1986-12-09

John E. Ingalls — 1 Patent

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