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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '142') AND (category.subclass = '41') ORDER BY date ASC, patent, type

Total of 4 patents found where: Class is '142'; Subclass is '41';

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T / S Patent Date Description Patentee Category Assigned To
U 267,434 November 14, 1882 Lathe for Turning Insulator Pins
Lathe for turning out wooden insulator pins.
KURTZ, Jacob S.
U 297,865 April 29, 1884 Machine for Making Insulator Pins
Machine to turn wooden insulator pins
SNEE, William
Pin 1/2 to Milton A. Walton
U 350,843 October 12, 1886 Machine for Manufacturing Insulator Pins for Telegraphic Purposes
Machine for turning wooden insulator pins
ROGERS, Charles
U Specimen known 449,773 April 7, 1891 Insulator Pin Machine
Machine to make wooden pins (see 701,739)
Pin/machine K. L. Catlin and Lane Lyle

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