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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 = '174') AND (category.subclass = '203') ORDER BY assigned_to ASC, date, patent, type

Total of 20 patents found where: Class is '174'; Subclass is '203';

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T / S Patent Date Description Patentee Category Assigned To
U 492,394 February 28, 1893 Insulator Bracket
Bracket, adjustable angle with spring end for threads		 EICHBERG, William N.
 Bracket  
U 557,600 April 7, 1896 Insulator
Pin with spring coil		 PETERSON, Cyrus A.
 Pin  
U 937,736 October 19, 1909 Insulator
Pin with spring to fit into threads		 DUMBOLTON, Perry S.
FRANZ, Frank
 Pin  
U 1,095,860 May 5, 1914 Insulator Holder
Pin composed of metal wire		 HEFFNER, Herman C.
 Pin  
U 1,143,983 June 22, 1915 Insulator Support
Pin with metal spring coil of varying diameter for threads		 MILLER, Charles E.
 Pin  
U 1,158,149 October 26, 1915 Insulator Support
Pin, metal with spring for threads (improvement on 856,488)		 PEIRCE, JR., Charles L.
 Pin  
U 1,219,746 March 20, 1917 Insulator Bracket
Pin, side pin type made of sheet metal		 KEPPLER, Lewis F.
 Pin  
U 1,306,670 June 10, 1919 Insulating Support
Suspension cap and pin to improve strength of connection		 LANYON, Samuel H.
 Suspension  
U 1,385,638 July 26, 1921 Supporting Bracket
Steel pin with lag screw and spring for threads		 MILLER, Charles E.
 Pin  
U 1,444,434 February 6, 1923 Insulator Supporting Pin
Pin with corkscrew for threading into bottom of Electrose insulator		 STEINBERGER, Louis
 Pin  
U 1,591,883 July 6, 1926 Insulator Pin
Steel pin with lag screw and spring for threads		 PEIRCE, JR., Charles L.
 Pin  
 Frank F. Winters
U 1,911,558 May 30, 1933 Insulator Pin
Steel pin with threads made of a spring coil		 DRIGGS, Lorenzo J.
 Pin Frank F. Winters
 Hubbard & Co.
U 1,157,037 October 19, 1915 Insulator Supporting Structure
Bracket stamped from sheet metal and curved upward with spring for threads		 PEIRCE, JR., Charles L.
 Bracket 1/2 to Hubbard & Co.
U 1,219,862 March 20, 1917 Separable Insulator Thimble Structure
Thimble designed to be removable with external & internal threads		 PEIRCE, JR., Charles L.
 Thimble Hubbard & Co.
U 1,911,031 May 23, 1933 Insulator Support
Steel pin, support base, and threads made of a spring coil		 MILLER, Charles E.
 Pin Hubbard & Co.
 Line Material Co.
U 1,546,591 July 21, 1925 Cushion Head Insulator Pin
Threads on a pin made of soft metal wire such as lead		 KYLE, William D.
 Pin Line Material Co.
U 1,715,507 June 4, 1929 Insulator Mounting
Steel pin with malleable threaded thimble and coil spring for threads to contact the insulator pinhole		 KYLE, William D.
 Pin Line Material Co.
 Peirce Specialty Co.
U 856,488 June 11, 1907 Insulator
Pin (metal) using spring for threads		 PEIRCE, JR., Charles L.
 Pin Peirce Specialty Co.
U 883,823 April 7, 1908 Insulator Support
Pin with coiled spring for threads		 PEIRCE, JR., Charles L.
 Pin Peirce Specialty Co.
 The Ohio Brass Co.
U 1,489,809 April 8, 1924 Insulator
Suspension with ribbed sheet metal in pin and cap for better adhesion of cement		 AUSTIN, Arthur O.
 Suspension The Ohio Brass Co.

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