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You can peel off all the labels easy enough, but the hull I.D. number should still be there. Part of that number is code for the name of the manufacturer, and though I can't tell you where to find it, info about interpreting the number can be found online (the topic has been posted here before, and somebody here knows what to do). Most likely, the hull number is stamped or engraved near the stern, on just one side.
If you go straight to this link, you can do a search:
Enter the three-letter code at the beginning of your hull ID number into the blank titled "MIC" and it should bring up the manufacturer. For example, I entered BLQ and it bought up "Blackhawk Canoe, 1140 N. Parker Dr., Janesville, WI".