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 = '356') ORDER BY category DESC, date, patent, type |
Total of 3 patents found where: Class is '425'; Subclass is '356';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
Press | ||||||
U | 2,582,922 | January 15, 1952 | Apparatus for Molding Articles Press that can be adapted for insulator manufacture |
CROWLEY, Henry L. HOSSENLOPP, Arthur M. |
Press | Henry L. Crowley & Co., Inc. |
U | 3,185,560 | May 25, 1965 | Plural Piston Press Forming Apparatus Press for forming the inner shape of glass articles such as a suspension insulator |
WILCOCK, John Edward |
Press | Pilkington Brothers Ltd. |
Manufacturing | ||||||
U | 1,929,737 | October 10, 1933 | Apparatus for Molding Insulators Die to hot press to form an insulator for street lights with one part of the mold rotating and a stationary part to form petticoats with integral lugs (see 2,007,567) |
FISCHER, Eugene H. |
Manufacturing | The Harford Faience Co. |
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