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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 = 'CRABTREE') AND (first_name = 'Lawrence L.') ORDER BY date ASC, patent, type

Total of 1 patents found where: Last Name is 'CRABTREE'; First Name is 'Lawrence L.';

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T / S Patent Date Description Patentee Category Assigned To
 1912
U 1,047,176 December 17, 1912 Cross Arm
Crossarm stamped out of sheet metal and easy to install		 CRABTREE, Lawrence L.
RIPLEY, T. Charley
 Crossarm  

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