| 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 = '264') AND (category.subclass = 'DIG78') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '264'; Subclass is 'DIG78';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1920 | ||||||
| U | 1,360,896 | November 30, 1920 | Cemented Insulator Multipart cementing procedure evacuate air from cement, coat with tar |
CREIGHTON, Elmer |
Multipart | General Electric Co. |
| 1929 | ||||||
| U | 1,717,996 | June 18, 1929 | Means for and Method of Making Insulators Press method of molding porcelain insulator with vibration improves quality (Hewlett) |
MOORE, JR., Stewart L. |
Press | Locke Insulator Corp. |
| 1938 | ||||||
| U | 2,119,259 | May 31, 1938 | Method of Making Articles of Vitreous Materials Glass Block Pressing Machine |
SLAYTER, Games |
OI | Owens-Illinois Glass Co. |
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