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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '174') AND (category.subclass = '181') ORDER BY last_name ASC, first_name, date, patent, type

Total of 12 patents found where: Class is '174'; Subclass is '181';

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T / S Patent Date Description Patentee Category Assigned To
 ANDERSON, Albert
U Specimen known 869,403 October 29, 1907 Strain Insulator
Strain insulator made of a ball with two loop connectors
ANDERSON, Albert
Strain Albert & J M Anderson Mfg. Co
 AUSTIN, Arthur O.
U 1,481,080 January 15, 1924 Insulator
Antenna or guy strain insulator consisting of a bar of porcelain with longitudinal ribs and metal caps on the ends
AUSTIN, Arthur O.
Antenna The Ohio Brass Co.
 HAWLEY, Kent A.
U 1,822,485 September 8, 1931 Insulator
Method of attached metal cap and pin to suspension insulators
HAWLEY, Kent A.
Suspension Locke Insulator Corp.
 KEMPTON, Willard H.
R 13,526 February 11, 1913 Insulator
Reissue of patent 904,069. Strain insulator to electrically disconnect the circuit.
KEMPTON, Willard H.
Strain The Johns-Pratt Co.
 KEMPTON, Williard H.
U 904,069 November 17, 1908 Insulator
Strain insulator to electrically disconnect the circuit. (see reissue 13,526)
KEMPTON, Williard H.
Strain The Johns-Pratt Co.
 LUSCOMB, Henry H.
U 515,779 March 6, 1894 Strain Insulator
Strain type
LUSCOMB, Henry H.
Strain The Johns Pratt Co.
 SCHEIBLE, Albert
U 1,034,518 August 6, 1912 Hanger for Electrical Apparatus
Hanger for street lights composed of a bell insulator, cross arm with spool insulators on each end, and a hook to support the lamp.
SCHEIBLE, Albert
Hanger  
 STEINBERGER, Louis
U Specimen known 927,186 July 6, 1909 High Potential Strain Insulator
Electrose strain insulator, specimen marked with this patent
STEINBERGER, Louis
Electrose  
U 1,011,652 December 12, 1911 Strain Insulator
Strain, ribbed made of Electrose
STEINBERGER, Louis
Strain  
 WALKER, Robert H.
U 2,103,399 December 28, 1937 Insulator
Fog type suspension with top curved down over bottom petticoat that extends up inside the top part
WALKER, Robert H.
Fog The Ohio Brass Co.
 WINTON, Henry D.
U 352,436 November 9, 1886 Electric Insulator
Strain type
WINTON, Henry D.
Strain  
 WIRT, Charles
U 1,040,971 October 8, 1912 Insulating Joint
miscellaneous - insulating joint
WIRT, Charles
Miscellaneous Wirt Electric Specialty

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