| 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 = '200') AND (category.subclass = '48R') ORDER BY date ASC, patent, type |
Total of 6 patents found where: Class is '200'; Subclass is '48R';
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 |
| 1908 | ||||||
| U | 875,978 | January 7, 1908 | Electric Switch High-tension switch supported on several multipart insulators. |
BAUM, Frank George |
Switch | |
| 1910 | ||||||
| U | 959,929 | May 31, 1910 | High Voltage Switch High voltage switch utilizing a string of suspension insulators |
GODDARD, Walter T. |
Switch | Locke Insulator Mfg. Co. |
| 1914 | ||||||
| U | 1,099,421 | June 9, 1914 | High Voltage Switch High voltage switch mounted on multipart insulators composed of triangle shaped metal rods and insulators that rotate to open or close the switch. |
BURKE, Alfred Woodard |
Switch | |
| 1917 | ||||||
| U | 1,215,549 | February 13, 1917 | Electric Conductor Insulating Support Suspension with method of balancing the electrical load across the string |
KOONTZ, JR., John A. |
Suspension | 1/2 to Beardsley/1/4 to Shoemaker |
| 1929 | ||||||
| U | 1,712,432 | May 7, 1929 | Electrical Insulator Assembly Suspension using Hewletts for novel electric switch |
HAGERMAN, Alva Lloyd |
Suspension | |
| U | 1,717,210 | June 11, 1929 | High Voltage Circuit Interrupter High voltage air break switch |
GODDARD, Walter T. |
Transmission | General Electric Co. |
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