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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 = '425') AND (category.subclass = '459') ORDER BY date ASC, patent, type

Total of 5 patents found where: Class is '425'; Subclass is '459';

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T / S Patent Date Description Patentee Category Assigned To
U 533,212 January 29, 1895 Combined Jigger and Pulldown
Press or jigger gearing and mechanism for forming earthen ware articles such as dishes and pottery
U 1,553,356 September 15, 1925 Machine for Producing Threads or Grooves in Plastic Articles
Threading method whereby mandrel rotates (similar to Lapp wobbler method)
BENNETT, Cornelius Van Dyke
Thread The Porcelain Insulator Corp.
U 1,567,027 December 29, 1925 Insulator Threading Machine
Machine to form threads in plastic clay
BENNETT, Cornelius Van Dyke
Press The Porcelain Insulator Corp.
U 1,687,759 October 16, 1928 Insulator Knurling Device
Manufacturing method of cutting inside of multipart joints to aid cement adhesion
Manufacturing Locke Insulator Corp.
U 1,937,184 November 28, 1933 Jigger
Jiggering machine using centrifugal force to cut out the interior of bushings
AUSTIN, Arthur O.
Manufacturing The Ohio Brass Co.

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