[Clipart] More copyrighted cliparts

[chovynz]

I've hidden these.
http://www.openclipart.org/index.php?pretty=detail/63529
http://www.openclipart.org/detail/21638
http://www.openclipart.org/index.php?pretty=detail/60817
http://www.openclipart.org/detail/20916
http://www.openclipart.org/detail/20917
http://www.openclipart.org/detail/20918
http://www.openclipart.org/detail/20919
http://www.openclipart.org/detail/20920
http://www.openclipart.org/index.php?pretty=detail/28938
http://www.openclipart.org/detail/31489
http://www.openclipart.org/index.php?pretty=detail/30973
http://www.openclipart.org/detail/30979
http://www.openclipart.org/index.php?pretty=detail/31567
http://www.openclipart.org/detail/31843
http://www.openclipart.org/index.php?pretty=detail/59347
http://www.openclipart.org/detail/26495
http://www.openclipart.org/detail/26491
http://www.openclipart.org/index.php?pretty=detail/63511

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I need some more help with the below. Are these trademarked or 
copyrighted in any way? I can't find if they are images from the game (I 
suspect they are), or if they are original creations. Even if they are 
original creations I'm not sure they can be allowed on OCAL. Anyone got 
further thoughts on them?
http://www.openclipart.org/detail/63517
http://www.openclipart.org/detail/63523

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USB - We've had a partial discussion on this already. Still not 
resolved. Nobody "seems" to own copyright (that I can find; I am 
blatting through these...), however Nathan Eady suggests there might be 
trademark issues with it. Do I hide it or not?
http://www.openclipart.org/detail/58687

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Windows - As far as I understand, "Fair Use" is not acceptable for 
Public Domain. Affected cliparts below. I need someone else to confirm 
or challenge that these are in Public Domain.
http://www.openclipart.org/detail/58963
http://www.openclipart.org/detail/19989