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X Patents

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Early American Patents

Early Canadian Patents


Patent XC-910: 1858-12-31, Improved steam boiler

X Number Date Inventor City Title
XC-910 1858-12-31 E. E. Gilbert Montreal, QC Canada Improved steam boiler


XC patents are Canadian patents issued between 1824 and 1869.

Information Sources

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xc-patents/xc-910.txt · Last modified: 2019/05/25 00:16 (external edit)