Perhaps you are interested in the following logos.

ADT ADT  vector
HUMANA HOSPITAL HUMANA HOSPITAL vector
MG MG  vector
Nutrite Nutrite  vector
VARIG lin aereas VARIG lin aereas vector
AECC AECC vector
AMERICAN HEART ASSOC 2 AMERICAN HEART ASSOC 2 vector
ARTVISION ARTVISION vector
ATI All-In-Wonder ATI All-In-Wonder vector
A karamallakis & Sons A  karamallakis & Sons vector
Abekas 6000 Abekas 6000 vector
Access Access vector
Ace Target 594 Ace Target 594 vector
Amadeus 11 Amadeus 11 vector
Amcore Financial Amcore Financial vector