sed '/^[0-9]*[acd][0-9]*$/d
/^[0-9]*\,[0-9]*[acd][0-9]*$/d
/^[0-9]*[acd][0-9]*\,[0-9]*$/d
/^[0-9]*\,[0-9]*[acd][0-9]*\,[0-9]*$/d
/^$/d
/^\ *<\ *$/d
/^\ *>\ *$/d
/^\ *|\ *$/d
/All Rights Reserved/d
/National Semiconductor/d
/\#ident/d'
