Search the Insulator Patent Reference Library

Search the Insulator Patent Reference Library:

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 = '55') ORDER BY date ASC, patent, type

Total of 2 patents found where: Class is '248'; Subclass is '55';

View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.

T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1918
U	1,258,802	March 12, 1918	Insulator Support Tree type - swinging type with bracket and roller on pin type insulator	MORGAN, Andrew J.	Tree
		1920
U	1,348,534	August 3, 1920	Insulator Bracket Bracket to attach to a cable to lead a telephone wire down to a building	BEINE, Charles H.	Bracket	1/2 to George C. Brown

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