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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 = '147') ORDER BY date ASC, patent, type

Total of 28 patents found where: Class is '174'; Subclass is '147';

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T / S Patent Date Description Patentee Category Assigned To
 1875
U 161,058 March 23, 1875 Improvement in Insulating Blocks for Telegraph Lines
Slotted block to hold several wires		 PIDGEON, George S.
 Slotted  
 1885
U 328,728 October 20, 1885 Insulator
Slotted tubular insulator for crossovers		 SMITH, Leonard O.
 Slotted  
 1894
U 524,850 August 21, 1894 Insulator
Strain and hanger block		 HAMMOND, Charles N.
 Strain  
 1895
U 550,673 December 3, 1895 Crossover Insulator
Crossover knob		 BERON, Frank G.
 Crossover 1/2 to James Gaffney
 1905
U 806,769 December 12, 1905 Adjustable Support for Telegraph Line Wires
Split cylinder of wood insulator for spacing line wires with external spiral grooves for receiving spiral of wire to hold the halves together and attach to insulator on adjacent wires		 BELL, Jasper N.
 Wood  
 1906
U 824,055 June 19, 1906 Insulator
Crossover		 ACLY, Harry M.
 Crossover Stanley Electric Mfg. Co.
 1908
U 878,949 February 11, 1908 Electric Wire Insulator
Crossover		 HANSON, John H.
 Crossover  
 1911
U 996,782 July 4, 1911 Insulator
Crossover		 MOORE, William S.
 Crossover  
 1912
U Specimen known 1,048,850 December 31, 1912 Insulator
Findlay reversible ""Buckeye"" split-knob for crossovers		 MOORE, John W.
 Knob  
 1930
U 1,755,587 April 22, 1930 Insulating Device
Crossover		 BROAD, William
 Crossover 3/4 to Harry McLain
U 1,761,046 June 3, 1930 Transposition Device
Transposition ring for radio line		 PFAUTZ, Christian E.
 Transposition RCA
 1936
U 2,043,754 June 9, 1936 Transposition Insulator
Transposition for radio line		 JOHNSON, Edgar F.
 Transposition  
 1938
U 2,135,344 November 1, 1938 Transposed Lead-In
Transposition for radio line		 JOHNSTON, Fred E.
 Transposition Crosley Radio Corp.
U 2,138,571 November 29, 1938 Insulator
Transposition for telephone line		 DEHMEL, Richard C.
 Transposition Bell Telephone Laboratories, Inc.
 1941
U 2,248,044 July 8, 1941 Transposition Insulator
Transposition insulator with channels for two line wires to cross over within the insulator		 DEHMEL, Richard C.
 Transposition Bell Telephone Laboratories, Inc.
 1942
U Specimen known 2,299,960 October 27, 1942 Bracket and Method of Transposing Wires
Transposition bracket		 BREWSTER, Truman P.
MCKAHAN, Alexander C.
 Transposition  
 1944
U 2,356,750 August 29, 1944 Wire Transposing Device
Transposition bracket using spools for carrier telephone circuits		 CASE, Rogers
 Transposition  
 1948
U 2,436,789 March 2, 1948 Wire Transposing Device
Transposition bracket using spools for carrier telephone circuits		 CASE, Rogers
 Transposition  
U Specimen known 2,437,593 March 9, 1948 Reinforced Wire-Contacting Insulator Assembly
Transposition bracket using spool insulators		 CASE, Rogers
 Transposition  
U 2,455,227 November 30, 1948 Wire Transposing Device
Transposition midspan bracket, 2 rotatable CD 1049 spools		 CASE, Rogers
 Transposition Transadean Associates, Inc.
U Specimen known 2,455,228 November 30, 1948 Transposition Bracket
Transposition 4-spool bracket (see 2,455,229 and 2,655,553)		 CASE, Rogers
 Transposition Transadean Associates, Inc.
U Specimen known 2,455,229 November 30, 1948 Transposition Bracket
Transposition bracket for fixed mounting on support		 CASE, Rogers
 Transposition Transadean Associates, Inc.
 1953
U Specimen known 2,655,553 October 13, 1953 Line Transposition Bracket with Reinforcing Gussets
Transposition bracket (see 2,455,228)		 CASE, Rogers
 Transposition  
 1955
U 2,717,274 September 6, 1955 Transposition Bracket
Transposition bracket		 CASE, Rogers
 Transposition Transadean Associates, Inc.
 1956
U 2,747,010 May 22, 1956 Transposition Bracket
Transposition bracket		 MILNE, Winford G.
RIDGERS, Frederick G.
 Transposition N. Slater Co., LTD
U 2,757,224 July 31, 1956 Transposition Bracket
Transposition bracket		 MILNE, Winford G.
RIDGERS, Frederick G.
 Transposition N. Slater Co., LTD
 1958
U 2,862,990 December 2, 1958 Combination Point and Span Transposition Bracket
Transposition and span bracket for carrier circuits		 CASE, JR., Rogers
 Transposition  
 1964
U 3,118,967 January 21, 1964 Transposing Device
Unusual circular transposition insulator device		 ROSENVOLD, Carl
 Transposition Transadean Associates, Inc.

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