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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 = '218.4') ORDER BY date ASC, patent, type

Total of 5 patents found where: Class is '248'; Subclass is '218.4';

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T / S Patent Date Description Patentee Category Assigned To
 1932
U 1,863,539 June 14, 1932 Pole Top Pin
Steel pin with strap to attach to top of pole		 HAWLEY, Kent A.
 Pin Locke Insulator Corp.
U 1,865,134 June 28, 1932 Pole Top Bracket
Pole top bracket that uses the same length steel insulator pin as that used on the wooden crossarm		 PLIMPTON, Bentley A.
 Bracket Locke Insulator Corp.
 1943
U Specimen known 2,311,779 February 23, 1943 Insulating Apparatus For Electric Fences
Knob for fence post (porcelain SURGE insulator) (see 2,350,420) (see design 126,721) (see design 126,722) (see 2,454,348) [see picture 170540955]		 SCHILLING, Lorell John
 Electric Fence Babson Brothers Co.
 1952
U Specimen known 2,609,418 September 2, 1952 Adjustably Mounted Insulator Assembly
Electric fence insulator with hexagon head used with metal mounting bracket (see patent 2,756,958)		 BINNS, Jack N.
DUGLE, Thomas E.
ALT, Alvin F.
 Electric Fence  
 1969
U 3,474,995 October 28, 1969 Utility Pole Insulator Bracket Extension
Metal bracket or extension to support insulators, fuses, etc. when no crossarms are present.		 AMIDON, Joseph C.
QUAYLE, Jackson C.
 Miscellaneous  

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