Darrell D. Cole — 1 Patent at Proctor Consulting

Darrell D. Cole has been granted 1 US patent while listed as an inventor at Proctor Consulting. All of these patents were granted in 1983. Darrell D. Cole ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Darrell D. Cole in Newberg, OR, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4367376	Electronic telephone ringer including anti-bell tap provisions	D. Frederic Proctor	1983-01-04

Darrell D. Cole — 1 Patent

Issued Patents All Time

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