Mac Address Book

I have an address book with thousands of duplicates, 55000 total contacts. How do I remove duplicates from address book? When I use find duplicates the system hangs and never finishes.
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Eoin OSullivanConsultantCommented:
Have a go with the applescript supplied here, use the version which was updated for osx 10.6
jpmserviceAuthor Commented:
Working on testing solution. I will probably have time to resolve next week.
jpmserviceAuthor Commented:
the only way to resolve was to manually delete items. because file was so large it would not export. so I searched for common duplicates and deleted groups at a time.

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jpmserviceAuthor Commented:
no other option provided would work.
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