|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 = '315') ORDER BY date ASC, patent, type|
Total of 3 patents found where: Class is '315';
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|
|U||883,303||March 31, 1908||Security Lightning Arrester
Lightning rod with multiple separate points arranged along the conductor on the edges of the roof
|DRAKE, William E.
||Lightning Rod Point|
|U||1,449,694||March 27, 1923||Protective Device
Protective device to prevent arcing
|PEEK, JR., Frank W.
||Miscellaneous||General Electric Co.|
|U||1,976,378||October 9, 1934||Aviation Marker
Aviation warning light attached to a suspension insulator
|VROOMAN, Edward C.
||Misc||Locke Insulator Corp.|
Total of 0.01 seconds