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

Total of 6 patents found where: Category is 'Earthenware';

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T / S Patent Date Description Patentee Category Assigned To
 1864
U 41,157 January 5, 1864 Improvement in Insulators for Telegraph Wires
Earthenware (terra-cotta) insulator to hold 3 to 7 wires		 HOLLAND, James
 Earthenware  
 1867
U 66,453 July 9, 1867 Improvement in Insulators for Telegraphs
Earthenware pin and insulator saturated with tar		 BOYNTON, John F.
 Earthenware  
 1868
U Specimen known 75,815 March 24, 1868 Improvement in Insulators for Telegraphs
Earthenware insulator, cemented galvanized pin coated with paraffin (Brown p. 57)		 VARLEY, Cromwell F.
 Earthenware  
 1872
U 124,200 March 5, 1872 Improvement in Telegraph Insulators
Earthenware insulator soaked in mix of wax and rosin then in petroleum		 FARMER, Moses G.
 Earthenware  
 1904
U 774,765 November 15, 1904 Art and Method of Manufacturing Earthenware Insulators
Earthenware, manufacture of		 LOCKE, Fred M.
 Earthenware  
 1905
U 790,214 May 16, 1905 Method of Manufacturing High Potential Earthenware Insulators
Earthenware, manufacture of hi-potential insulators		 LOCKE, Fred M.
 Earthenware  

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