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X Patents

Fractional X Patents

Reissued X Patents

Early American Patents

Early Canadian Patents


Patent XC-2801: 1868-09-29, Expanding mandrel for turning lathe

X Number Date Inventor City Title
XC-2801 1868-09-29 Adam Kay Galt, ON Canada Expanding mandrel for turning lathe
John McLachlan Galt, ON Canada


XC patents are Canadian patents issued between 1824 and 1869.

Information Sources

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xc-patents/xc-2801.txt · Last modified: 2019/05/25 00:16 (external edit)