|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 = '324') AND (category.subclass = '706') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Class is '324'; Subclass is '706';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||1,744,566||January 21, 1930||Ground Resistance Test Set
Portable instrument to measure electrical ground resistance
|MOTT, Everett V.
ROVERE, Lewis H.
ROWLAND, Davidge H.
|Testing||Western Union Telegraph Co.|
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