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Create the page "John MacHaffie" on this wiki! See also the search results found.

• Patent GB-1890-12361
  According to the Smithsonian catalog entry cited below, MacHaffie was a British citizen living in Schenectady, New York; he also patented thi |Inventors=John MacHaffie
  1 KB (180 words) - 12:22, 9 June 2021
• Patent GB-1891-1549
  |Inventors=John MacHaffie
  788 bytes (102 words) - 18:18, 5 August 2021