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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 WHERE (last_name = 'MARKEL') AND (first_name = 'Harley R.') ORDER BY date ASC, patent, type

Total of 6 patents found where: Last Name is 'MARKEL'; First Name is 'Harley R.';

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T / S Patent Date Description Patentee Category Assigned To
 1908
U Specimen known 878,302 February 4, 1908 Insulator
nail-knob, square shaped with reversible matching halves		 MARKEL, Harley R.
 Knob  
 1910
U Specimen known 971,683 October 4, 1910 Insulator
Knob		 MARKEL, Harley R.
 Knob  
 1911
U Specimen known 992,570 May 16, 1911 Insulator
Knob with reversible L-shaped halves to better grip the wire and without projections that might get damaged during shipment.		 MARKEL, Harley R.
 Knob  
 1913
U 1,061,620 May 13, 1913 Insulator
Cleat		 MARKEL, Harley R.
 Cleat  
 1916
U Specimen known 1,179,127 April 11, 1916 Insulator
Knob, split with metal clip to hold the parts together		 MARKEL, Harley R.
 Knob  
U 1,201,325 October 17, 1916 Insulator
Knob		 MARKEL, Harley R.
 Knob  

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