Possible Clues:

• Eric Johnson song he owns the copyright to?
• Company’s unique symbol
• Corporate identifier whose symbol is common to nine other puzzle answers
• Brand
• Characteristic craft revolution­ised nameless country
• Skill rising with country losing any number? That's a sort of sign
• Characteristic rush to return eastern currency no longer in use
• Label paintings put up on loan finally out of Denmark
• First of them comment having taken in ad's distinguishing characteristic
• A bitten apple, e.g