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  • HO 42/2181828 Feb 01-1828 Feb 28HO 42. Letters and Papers. Return to Parliament from the Rolls Office of the titles and dates of patents granted in Ireland for manufactures and inventions.Part 1 [folios 1-20] 16 Henry VIII to 1 January 1800.Part 2 [folios 21-53] 1 January 1800 to 31 December 1826.Part 3 [folios 54-56] Patents in Part 2 for which specifications had not been lodged.
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