Search the Insulator Patent Reference Library:

Build your search criteria. The patent must match all the values specified.
Select patent types: Utility   Design   Reissue
Patent number:
Date:
Year between: and
Patentee starting with:
City:
State:
Assigned To starting with:
Description containing:
Category:
Class:    Subclass:
Click Search when complete:
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 = '70') ORDER BY date ASC, patent, type

Total of 4 patents found where: Class is '248'; Subclass is '70';

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
 1907
U 865,473 September 10, 1907 Break Arm for Electric Wiring
Adjustable steel bracket for pintype insulators for crossarms, buildings, etc.
ARTHUR, Walter A.
Bracket  
 1936
U 2,050,510 August 11, 1936 Cable Saddle
Cable rack insulator for supporting heavy cables by simply laying the cable in the rack insulator.
THOMS, Alexander P.
KELLER, Carl A.
Cable Rack  
 1942
U 2,300,674 November 3, 1942 Secondary Rack
Bracket for wireholders or rack spools. Each insulator bracket is easily connected or attached to the supporting bracket.
JOHNS, George McDonald
RICHARD, Thomas T.
Bracket/wireholder Smith-Johns Inc.
 1951
U 2,571,495 October 16, 1951 Adjustable Insulator Bracket
Wireholder bracket for secondary rack insulators that also functions to aid in stringing the wire without damage to the bracket.
STEINMAYER, Alwin G.
Wireholder/bracket/rack Spool McGraw Electric Co.

Total of 0.00 seconds