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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 = '248') AND (category.subclass = '219.3') ORDER BY date ASC, patent, type

Total of 5 patents found where: Class is '248'; Subclass is '219.3';

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T / S Patent Date Description Patentee Category Assigned To
U 932,570 August 31, 1909 Supporting Pin for Insulators
Pin, metal mounted to side of pole
PERRINE, Frederic A. C.
U 1,184,336 May 23, 1916 Combination Wire Support for Electric Distribution
Pin bracket for poles
FAY, John L.
Bracket W. N. Matthews & Brother Inc.
U 1,714,814 May 28, 1929 Pole Bracket
Steel bracket for pole top that supports insulator pin on side of pole
PLIMPTON, Bentley A.
Bracket Locke Insulator Corp.
U 2,260,917 October 28, 1941 Insulator Pin
Steel pin with flanges to fit in top and bottom of hole drilled for larger wooden pins
Pin Line Material Co.
U 2,757,224 July 31, 1956 Transposition Bracket
Transposition bracket
MILNE, Winford G.
RIDGERS, Frederick G.
Transposition N. Slater Co., LTD

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