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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 = '174') AND (category.subclass = '40R') ORDER BY specimen ASC, date, patent, type

Total of 6 patents found where: Class is '174'; Subclass is '40R';

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T / S Patent Date Description Patentee Category Assigned To
U 258,005 May 16, 1882 Balloon Support for Telegraph Wires, &c.
Gas balloon as a substitute for poles to support telegraph wires, light towers, and flags
BEESON, William
U 461,109 October 13, 1891 Device for Stretching Heavy Wires on Poles
Mechanical device mounted on the crossarm with a roller to aid in stretching wires before they are attached to insulators.
BALL, Henry Price
Wire Stretcher Edison General Electric Co.
U 1,033,019 July 16, 1912 Insulator
Cover for bridle wire drop
JEWETT, Frank B.
Miscellaneous American Telephone & Telegraph Co.
U 1,280,172 October 1, 1918 Insulator Protector
Protective shield surrounding the insulator to protect it from damage.
CULLIGAN, Charles A.
Protective Shield  
U 1,687,535 October 16, 1928 Reduction of Losses in Insulators, Pins, and Cross Arms
Carrier circuit insulator with specific diameter/pin ratio
AFFEL, Herman A.
GREEN, Estill I.
Carrier American Telephone & Telegraph Co.
U 1,700,166 January 29, 1929 Insulator for Bridle Wires
Dry-spot using coke bottle top & cap
JOHNSON, Benjamin
Dry-spot American Telephone & Telegraph Co.

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