Perhaps you are interested in the following logos.

AMERICAN GAS ASSOC AMERICAN GAS ASSOC vector
EPA medio ambiente EPA medio ambiente vector
ESCUDO MURCIA ESCUDO MURCIA vector
Koni Koni  vector
RCA RCA  vector
RURITAN RURITAN vector
066 sign 066 sign vector
4 Cannel 4 Cannel vector
5aSec 5aSec vector
A-B Quality A-B Quality vector
AIEJ AIEJ vector
AMER OPTOM ASSN AMER OPTOM ASSN  vector
APT 306 APT 306 vector
AWM AWM vector
Acal Acal vector