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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 = 'FOOT') AND (first_name = 'David A.') ORDER BY specimen ASC, date, patent, type

Total of 2 patents found where: Last Name is 'FOOT'; First Name is 'David A.';

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T / S Patent Date Description Patentee Category Assigned To
 1869
U 93,609 August 10, 1869 Improvement in Lightning Rods
Method of making star shaped lightning rods with silver plated points
FOOT, David A.
CHADWICK, Avery
Lightning Rod  
 1871
U 113,154 March 28, 1871 Improvement in Lightning Rods
Lightning rod made of hollow copper star rod with iron wire filling the inside and annealed wire in the star points
FOOT, David A.
KNAPP, George S.
Lightning Rod  

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