SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '235') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '235';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1878 | ||||||
R | 8,304 | June 25, 1878 | Improvement in Couplings for Lightning Rods Coupling for lightning rods where the ends can be screwed together (see 90,578) |
REYBURN, William S. HUNTER, Edmund A. W. |
Lightning Rod Coupling | 1/2 of Hunter's right to Byron P. Moulton |
1912 | ||||||
U | 1,043,321 | November 5, 1912 | Combined Insulator and Current Distributor Miscellaneous style with attachment for multiple current distributors (see 1,085,813) |
KNUTZ, Ernest H. |
Miscellaneous |
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