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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 = '217.2') ORDER BY date ASC, patent, type

Total of 6 patents found where: Class is '248'; Subclass is '217.2';

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T / S Patent Date Description Patentee Category Assigned To
 1905
U 794,645 July 11, 1905 Insulator Bracket for Telephone Poles, etc.
Wire device to secure a side pin to a pole
SPRINGEN, Knudt G.
Pin  
 1910
U 945,213 January 4, 1910 Insulator Clamp
Bracket for pin that clamps around crossarm
BLACKBURN, Jasper
Bracket  
U 964,376 July 12, 1910 Insulator Support
Bracket for pin that clamps around crossarm
BLACKBURN, Jasper
Bracket  
 1912
U 1,022,121 April 2, 1912 Insulator Pin
Pin, metal with barbs to hold it in hole in crossarm
BOYLAND, Clarence Joseph
Pin  
 1915
U 1,163,132 December 7, 1915 Insulator Pin
Insulator pin with two shanks that are driven into the mine ceiling or wall at right angles to each other in order to more securely hold the insulator.
ETTE, Charles G.
Pin/mine St. Louis Malleable Casting Co.
 1941
U 2,228,804 January 14, 1941 Insulator Pin
Pin made of Bakelite and nailed underneath the crossarm
ADAMS, Basil R. S.
Pin  

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