| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Guardian Trust Co. | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 1,797,986 | Mar. 24, 1931 | F.C. King | Tool Holder | tool holders | |
| 1,910,296 | May 23, 1933 | F.C. King | Punch Retainer Mechanism | punch presses | |
| 1,939,503 | Dec. 12, 1933 | F.C. King | Tool Holder | metalworking machine tool holders | |