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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'Delbert H. Mast') ORDER BY date ASC, patent, type

Total of 2 patents found where: Assigned To is 'Delbert H. Mast';

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T / S Patent Date Description Patentee Category Assigned To
 1914
U 1,112,634 October 6, 1914 Lightning Conductor
Improvement of a previous application (see 1,119,973) by inserting a metallic disc in the coupling to aid in conduction through the coupling		 MAST, Louis L.
 Lightning Rod Delbert H. Mast
U 1,119,973 December 8, 1914 Lightning Conductor
Conductor composed of a strong metal core covered with a sheath of copper to form a ""star"" shaped lightning rod		 MAST, Louis L.
 Lightning Rod Delbert H. Mast

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