|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 = 'ENGGREN') AND (first_name = 'John A.') ORDER BY date ASC, patent, type|
Total of 1 patents found where: Last Name is 'ENGGREN'; First Name is 'John A.';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||24,110||May 24, 1859||Improved Device for Securing Lightning Rods
Lightning rod insulator (glass) with spring clip to hold rod
|ENGGREN, John A.
||Lightning Rod Insulator|
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