| Patents for Arthur E. De Koning |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 1,364,356 | Jan. 04, 1921 | A.E. De Koning | Sawing-machine |
 | 1,778,971 | Oct. 21, 1930 | A.E. De Koning | Sawing machine |
 | 1,780,176 | Nov. 04, 1930 | A.E. De Koning | Sawing machine |
 | 1,793,544 | Feb. 24, 1931 | A.E. De Koning | Cut-off saw machine |
 | 1,800,450 | Apr. 14, 1931 | O.K. Hill | Cut-off sawing machine |
| | 1,808,453 | Jun. 02, 1931 | A.E. De Koning | Combination sawing machine |
 | 2,007,563 | Jul. 09, 1935 | A.E. De Koning | Mechanical movement |
 | 2,016,799 | Oct. 08, 1935 | A.E. De Koning | Trimmer saw |
