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Early American Patents

Early Canadian Patents


Patent XC-2996: 1869-01-25, Edge-tool grinding machine

X Number Date Inventor City Title
XC-2996 1869-01-25 T. H. Bottomley Toronto, ON Canada Edge-tool grinding machine


XC patents are Canadian patents issued between 1824 and 1869.

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xc-patents/xc-2996.txt · Last modified: 2019/05/25 00:16 (external edit)