|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 = '49') ORDER BY date ASC, patent, type|
Total of 3 patents found where: Class is '49';
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||198,471||December 25, 1877||Improvement in Lightning Rods
Lightning rod composed of sheet metal formed into a pair of tubes with rod laying between the tubes and multiple tubes and rods can be used
|SMITH, Charles H.
|U||2,454,348||November 23, 1948||Latch for Electric Fence Gates
Latch for electric fence using Surge insulators (see 2,350,420) (see design 126,721) (see design 126,722) (see 2,454,348) [see picture 170540955]
|SCHILLING, Lorell John
||Electric Fence||Babson Brothers Co.|
|U||2,738,838||March 20, 1956||Glass Block Ventiliating Device
Operable glass block vent
|SUTTER, John H.
||OI||Owens-Illinois Glass Co.|
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