Kaman GTX 23 Solid Body Electric Guitar Snakeskin | Musician's Friend
Anyone heard of a Kaman GTX33? - Ultimate Guitar
Vintage Acoustic Guitar Patent Drawing Digital Printable - Etsy
OVATION GUITARS
Kaman GTX-33 Custom 1985 | Reverb Deutschland
The National GUITAR Museum - The Origins of Ovation. 48 years ago, Charles Kaman and his group of helicopter engineers submitted their plans for a roundback guitar to the US Patent Office.