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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Slotted') ORDER BY date ASC, patent, type

Total of 10 patents found where: Category is 'Slotted';

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T / S Patent Date Description Patentee Category Assigned To
 1860
U 28,263 May 15, 1860 Improved Insulator for Electrodes
Slotted enameled iron ring for holding electrodes		 ENGLER, Louis
KRAUSS, Ernest F.
 Slotted  
 1867
U 70,132 October 22, 1867 Improvement in Telegraph Insulators
Slotted, flanged insulator in slot in crossarm		 TELLER, Daniel W.
SAVAGE, William L.
 Slotted Themselves and W. H. Hoag
 1874
U 149,763 April 14, 1874 Improvement in Telegraph Insulators
Slotted block to hold wire held to pole with unique pin		 LE BARON, Charles L.
 Slotted  
U 154,258 August 18, 1874 Improvement in Telegraph Insulators
Slotted insulator to hold wire		 LE BARON, Charles L.
 Slotted  
 1875
U 161,058 March 23, 1875 Improvement in Insulating Blocks for Telegraph Lines
Slotted block to hold several wires		 PIDGEON, George S.
 Slotted  
 1876
U 183,865 October 31, 1876 Improvement in Telegraph Insulators
Slotted glass pin to hold wire and cap screwed to secure wire		 REYNOLDS, David M.
 Slotted James M. Brookfield
 1880
U 234,523 November 16, 1880 Telegraph Insulator
Slotted circular insulator held by split metal screw bracket		 BIGEON, Charles
 Slotted  
 1884
U 303,399 August 12, 1884 Electric Wire Insulator
Slotted block insulator to hold wire with a tie		 PRINCE, George W.
 Slotted  
U 303,483 August 12, 1884 Insulator
Slotted spherical insulator supported by box & screw to hold wire		 BAILEY, Charles De Roy
 Slotted  
 1885
U 328,728 October 20, 1885 Insulator
Slotted tubular insulator for crossovers		 SMITH, Leonard O.
 Slotted  

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