| 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 = '470') AND (category.subclass = '56') ORDER BY date ASC, patent, type |
Total of 7 patents found where: Class is '470'; Subclass is '56';
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 |
| 1924 | ||||||
| U | 1,486,664 | March 11, 1924 | Assembling Machine for Insulator Knobs Machine to assemble nail-knobs |
HIRES, John Edgar |
Knob | Automatic Machinery and Equipment Co., Inc. |
| 1925 | ||||||
| U | 1,532,110 | March 31, 1925 | Apparatus for Assembling Nail Knobs Machine for assembling nail-knobs |
LOY, John G. |
Knob | Federal Porcelain Co. |
| U | 1,532,111 | March 31, 1925 | Machine for Assembling Nail Knobs Machine for assembling nail-knobs |
LOY, John G. |
Knob | Federal Porcelain Co. |
| U | 1,538,238 | May 19, 1925 | Machine for Assembling Insulator Knobs Machine for assembling nail-knobs, inserting the nail and crimping it so the nail cannot be removed, thus holding the parts together. |
CARPENTER, Alexander |
Manufacturing | C. A. C. Automatic Machine Co. |
| 1926 | ||||||
| U | 1,583,458 | May 4, 1926 | Nail Knob Assembling Machine Machine for making nail-knobs |
HANLEY, Timothy Henry |
Knob | Federal Porcelain Co. |
| U | 1,589,939 | June 22, 1926 | Nail Knob Assembly Machine to manufacture nail-knobs |
CASE, Francis M. |
Knob | Federal Porcelain Co. |
| U | 1,589,940 | June 22, 1926 | Nail Knob Assembling and Securing Machine Machine to manufacture nail-knobs |
CASE, Francis M. |
Knob | Federal Porcelain Co. |
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