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.';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1859 | ||||||
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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