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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 = '403') AND (category.subclass = '217') ORDER BY date ASC, patent, type

Total of 3 patents found where: Class is '403'; Subclass is '217';

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T / S Patent Date Description Patentee Category Assigned To
U 185,272 December 12, 1876 Improvement in Couplings for Applying Weather Vane Pointers to Lightning Rods, &c.
Coupling to attach weather vane to the lightning rod
WESTON, James H.
U 786,691 April 4, 1905 Strain
Electrose strain (Brown p. 69)
U 804,630 November 14, 1905 Support for Pole Crossarms
Metal bracket to attach a wooden crossarm to the pole and to prevent the crossarm from moving up or down from horizontal and eliminate the need to mortise the pole.
SHORT, Edward C.

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