|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 = '248') AND (category.subclass = '69') ORDER BY date ASC, patent, type|
Total of 3 patents found where: Class is '248'; Subclass is '69';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||316,812||April 28, 1885||Telegraph Insulator
CD 119, self-tying via projections (347,635 more appropriate)
|U||427,296||May 6, 1890||Insulator
CD 141.8 and CD 1037, self-tying with tapered pin hole & clamping flange
|BUZBY, Joseph F.
|U||2,444,938||July 13, 1948||Insulator
Radio antennae insulator with center hole for nail and side slits to hold the antennae wire
|MARTIN, JR., Albert D.
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