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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 = '411') AND (category.subclass = '530') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '411'; Subclass is '530';

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T / S Patent Date Description Patentee Category Assigned To
 1927
U 1,633,399 June 21, 1927 Insulator Fitting
Link for Hewlett suspension disk (see 1,458,811)		 ECKERT, Grandon E.
 Suspension The R. Thomas & Sons Co.

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