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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '142') AND (category.subclass = '45') ORDER BY last_name ASC, first_name, date, patent, type

Total of 2 patents found where: Class is '142'; Subclass is '45';

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T / S Patent Date Description Patentee Category Assigned To
 BALDWIN, Joseph A.
U 298,543 May 13, 1884 Machine for Turning Insulator Pins
Machine to turn wooden insulator pins
BALDWIN, Joseph A.
Pin  
 SMITH, John B.
U 278,618 May 29, 1883 Machine for Making Brackets for Telegraph Insulators
Machine to turn wooden insulator pin brackets
SMITH, John B.
Pin Charles N. Freeman & David W. O'Neil

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