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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 = '294') AND (category.subclass = '104') ORDER BY date ASC, patent, type

Total of 1 patents found where: Class is '294'; Subclass is '104';

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T / S Patent Date Description Patentee Category Assigned To
 1937
U 2,092,515 September 7, 1937 Insulator
Circular line spacer for telephone wires composed of a disk with holes for each wire		 JERVEY, William T.
 Spacer Bell Telephone Laboratories, Inc.

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