Hotchkiss: Revision history

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27 January 2011

  • curprev 09:3109:31, 27 January 2011Bill Goodwine talk contribs 2,062 bytes +2,062 Created page with "What was the patent for? (improved door knobs made of clay or porcelin) Did knobs made of clay exist before? What was NEW? (putting together known knobs and known spindle). S..."