| 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 = '218') ORDER BY date ASC, patent, type |
Total of 5 patents found where: Class is '218';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1917 | ||||||
| U | 1,222,952 | April 17, 1917 | Fuse Device Fuse holder with plug insert to hold the fuse. (see reissue 14,844) |
HERZ, Alfred |
Fuse Holder | 1/2 to Edmund O. Schweitzer |
| 1929 | ||||||
| U | 1,717,210 | June 11, 1929 | High Voltage Circuit Interrupter High voltage air break switch |
GODDARD, Walter T. |
Transmission | General Electric Co. |
| 1931 | ||||||
| U | 1,819,302 | August 18, 1931 | Oil and Air Break Pothead Disconnect Pothead disconnect |
RAH, Joseph |
Insulator | G. & W. Electric Specialty Co. |
| 1932 | ||||||
| U | 1,883,671 | October 18, 1932 | Insulator Bracket and Support Bracket for rack spools with a plurality of spools for mounting on a building |
FORT, Louis |
Bracket | |
| 1935 | ||||||
| U | 2,011,136 | August 13, 1935 | Protective Apparatus Arcing gap using flux control insulators |
AUSTIN, Arthur O. |
Arc Gap | The Ohio Brass Co. |
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