I need a list of interlisted shares that trade on Canadian as well as US exchanges

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Clarification of Question by fryday-ga on 21 Nov 2002 23:43 PST

Revenue Canada requires that of all my RSP holdings, no more than 30%
can be foreign holdings. The balance must be Canadian companies, or at
least companies that have shares trading on Canadian exchanges. I've
used up the allowable percentage of foreign holdings but for a variety
of reasons would like to hold companies that also have their shares
listed in the US. The list must include all US companies that have
shares trading on both US AND Canadian exchanges. The location of
their headquarters is not important.