| 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 = 'FRITSCH') AND (first_name = 'Joseph W.') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Last Name is 'FRITSCH'; First Name is 'Joseph W.';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1873 | ||||||
| U | 145,641 | December 16, 1873 | Improvement in Couplings for Tubular Lightning Rods Means of coupling tubular lightning rods |
FRITSCH, Joseph W. |
Lightning Rod | |
| 1879 | ||||||
| U | 214,558 | April 22, 1879 | Improvement in Lightning Rod Couplings Lightning rod coupling made by inserting a tenon on the ends of rod sections, driving a non-corrosive male threaded thimble on the tenon, and screwing the ends of adjoing rods into a collar coupling |
FRITSCH, Joseph W. |
Lightning Rod Coupling | |
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