|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Spark Gap') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Category is 'Spark Gap';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||2,392,342||January 8, 1946||Combined Spark Gap and Insulator
CD 186, CD 186.1, CD 186.2; Transparent glass insulator with spark gap within the insulator for signal circuits
|STEINMAYER, Alwin G.
||Spark Gap||Line Material Co.|
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