Below you can find logos, similar to the 3C Studio.

W3C W3C vector
3C 3C vector
gkstudio gkstudio vector
Novaya Studio Novaya Studio vector
3Com 33 3Com 33 vector
StudioPost StudioPost vector
Studio 100 Studio 100 vector
M studio M studio vector
3COM BW 3COM BW  vector
3COM 3COM  vector
4Web Mutimedia Studio 4Web Mutimedia Studio vector
AT Studio AT Studio vector
Studio 63 166 Studio 63 166 vector
eStudio 83 eStudio 83 vector
CYBERIA Studio CYBERIA Studio vector