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Topic: what does this mean?

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Subject: what does this mean?
Date Posted: 12/20/2010 6:38 PM ET
Member Since: 10/28/2008
Posts: 3,529
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I know most of the abbreviations but this one has me stumped some one please tell me what    ISO means

Date Posted: 12/20/2010 6:43 PM ET
Member Since: 5/3/2006
Posts: 6,436
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In search of.

Date Posted: 12/20/2010 7:09 PM ET
Member Since: 10/28/2008
Posts: 3,529
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Thank you