Ibanez claim that they are now building the worlds first fretted fretless bass. See article here – http://www.ibanez.com/BassGuitars/model-SR2010ASC.
But, Doug Wilkes was making fretted frettless bases back in 1985 at his old factory. Click the links below to see a review in guitarist from 1985 about Wilkes fretted fretless basses.
Click here to see a forum thread about Ibanez’s claim on basschat.co.uk.
Click here to see more Doug Wilkes fretted frettless bass models from the past.