The only Kleven guitar I have come across is the Kleven 7 Archtop jazz guitar series. These instruments featured:

• Tune-o-matic style Tailpiece
• figured maple veneer top
• body depth - 2”
• lower bout width – 15”
• adjustable Steel Truss Rod
• 24 3/4" Scale Length
• Nut Width 1 7/8"
• Strung with Thomastik/Infeld George Benson set .81 .53 .38 .30 .20w .16 .12
• Body Bound in 5-Ply plastic binding
• Neck bound with Single White plastic binding
• Single neck humbucker configuration
• single Volume and Tone knobs
• 3 Tone Sunburst or Natural Finish
• 7-String Configuration

Apparently they were active around 2010 and before, and were sold on Amazon and eBay relatively cheaply.