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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 = '337') AND (category.subclass = '273') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '337'; Subclass is '273';

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T / S Patent Date Description Patentee Category Assigned To
U Specimen known 1,144,732 June 29, 1915 Fuse Device
Fuse holder or cut-out with knife insert to hold the fuse (see reissue ) (see patent 1,270,335)
HERZ, Alfred
Fuse Holder  

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