In addition to the reply from Thom Dammrich,
you can go to http://www.ipc.org for more information
about the IPC.

-Jerry

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For 93 million miles, there is nothing between the sun and my shadow
except me.  I'm always getting in the way of something...

Jerry J. Margeson    [log in to unmask]     http://www.coil.com/~jjm