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 = '52') AND (category.subclass = '416') ORDER BY category ASC, date, patent, type |
Total of 1 patents found where: Class is '52'; Subclass is '416';
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 |
OU | ||||||
U | 2,182,971 | December 12, 1939 | Skylight or Floorlight Construction Skylight construction using glass blocks |
RICHARDS, Joshua M. |
OU |
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