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 = '403') AND (category.subclass = '329') ORDER BY date ASC, patent, type |
Total of 2 patents found where: Class is '403'; Subclass is '329';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1882 | ||||||
U | 266,075 | October 17, 1882 | Lightning Rod Joint or Coupling Internal coupling for hollow lightning rods that can be pinned to the rod |
BALL, Charles E. |
Lightning Rod Coupling | |
1909 | ||||||
U | 937,140 | October 19, 1909 | Non-detachable Insulator Pin permanently fixed to the insulator via slotted pinhole |
BARTLETT, Harry MACCALLUM, Alexander P. |
Pin |
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