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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 = 'D13') AND (category.subclass = '132') ORDER BY patent ASC, type

Total of 12 patents found where: Class is 'D13'; Subclass is '132';

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T / S Patent Date Description Patentee Category Assigned To
 1897
D 27,756 October 19, 1897 Design for a Line Wire Insulator
Self-tying pin type		 GRAHAM, Sarah A.
 Pin-type  
 1898
D 28,743 May 31, 1898 Design for an Insulator Plate
Truncated triangular glass plate with three wiring knobs for arc lights		 MCDONALD, William B.
 Misc  
D 29,782 December 6, 1898 Design for an Insulator
Miscellaneous insulator		 MORGAN, Jacque L.
 Misc  
 1899
D 30,564 April 18, 1899 Design for an Insulator
Miscellaneous insulator		 MORGAN, Jacque L.
 Misc  
D 31,861 November 21, 1899 Design for a Ring Insulator
Ring wire holder (see ID 5165)		 COPELAND, Herschel P.
 Misc  
 1900
D Specimen known 32,741 May 29, 1900 Design for an Insulator
Eave drain & spout		 LOCKE, Fred M.
 Pin-type  
 1915
D 46,862 January 19, 1915 Design for an Insulator
Miscellaneous insulator		 CLAPPER, Ralph A.
 Misc  
 1919
D 52,991 February 11, 1919 Design for an Insulator
Miscellaneous knob		 HORTON, John T.
 Knob  
D Specimen known 53,522 July 8, 1919 Design for an Insulator
Strain		 PIERCE, JR., Charles L.
 Strain 1/2 to Hubbard & Co.
 1915
U Specimen known 1,127,776 February 9, 1915 Insulator
Reversible nail-knob		 KETTRON, Charles W.
 Knob Illinois Electric Porcelain Co.
U 1,163,114 December 7, 1915 Insulator
Cleat		 STAHL, Loren
 Cleat  
 1948
U Specimen known 2,444,938 July 13, 1948 Insulator
Radio antennae insulator with center hole for nail and side slits to hold the antennae wire		 MARTIN, JR., Albert D.
 Radio  

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