| 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 = '248') AND (category.subclass = '217.2') ORDER BY date ASC, patent, type |
Total of 6 patents found where: Class is '248'; Subclass is '217.2';
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 |
| 1905 | ||||||
| U | 794,645 | July 11, 1905 | Insulator Bracket for Telephone Poles, etc. Wire device to secure a side pin to a pole |
SPRINGEN, Knudt G. |
Pin | |
| 1910 | ||||||
| U | 945,213 | January 4, 1910 | Insulator Clamp Bracket for pin that clamps around crossarm |
BLACKBURN, Jasper |
Bracket | |
| U | 964,376 | July 12, 1910 | Insulator Support Bracket for pin that clamps around crossarm |
BLACKBURN, Jasper |
Bracket | |
| 1912 | ||||||
| U | 1,022,121 | April 2, 1912 | Insulator Pin Pin, metal with barbs to hold it in hole in crossarm |
BOYLAND, Clarence Joseph |
Pin | |
| 1915 | ||||||
| U | 1,163,132 | December 7, 1915 | Insulator Pin Insulator pin with two shanks that are driven into the mine ceiling or wall at right angles to each other in order to more securely hold the insulator. |
ETTE, Charles G. |
Pin/mine | St. Louis Malleable Casting Co. |
| 1941 | ||||||
| U | 2,228,804 | January 14, 1941 | Insulator Pin Pin made of Bakelite and nailed underneath the crossarm |
ADAMS, Basil R. S. |
Pin | |
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