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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Testing') ORDER BY date ASC, patent, type

Total of 2 patents found where: Category is 'Testing';

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T / S Patent Date Description Patentee Category Assigned To
 1924
U 1,515,864 November 18, 1924 Method of Testing Insulators
Testing method by extending the flashover distance		 LAPP, Grover W.
 Testing  
 1930
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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