Press for forming threads in wet process porcelain
Manufacturing method that replace casting large unipart insulators with a means to press out the entire form of the insulator
CD 1030: Wireholder made of glass, press for making the design
| 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 = '193') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '425'; Subclass is '193';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1927 | ||||||
| U | 1,640,514 | August 30, 1927 | Press for Forming Plastic Materials Press for forming threads in wet process porcelain |
MUELLER, Ferdinand C. H. |
Press | Findlay Electric Porcelain Co. |
| 1930 | ||||||
| U | 1,784,792 | December 9, 1930 | Apparatus for Making Insulators Manufacturing method that replace casting large unipart insulators with a means to press out the entire form of the insulator |
HAWLEY, Kent A. |
Manufacturing | Locke Insulator Corp. |
| 1943 | ||||||
| U |
2,336,864 | December 14, 1943 | Apparatus For Forming Insulators CD 1030: Wireholder made of glass, press for making the design |
HOLMES, Minot K. |
Insulator | Owens-Illinois Glass Co. |
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