| Patents for James N. Heald |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 386,921 | Jul. 31, 1888 | L.S. Heald | Tedder |
| | 500,128 | Jun. 27, 1893 | J.N. Heald | Crimping Machine |
 | 547,991 | Oct. 15, 1895 | L.S. Heald, J.N. Heald | Woodworking-machine |
 | 567,135 | Sep. 08, 1896 | L.S. Heald | Rotary cutter |
 | 630,536 | Aug. 08, 1899 | L.S. Heald, J.N. Heald | Drill-grinding machine |
| | 684,236 | Oct. 08, 1901 | J.N. Heald | Center Grinding Attachment for Lathes |
 | 734,863 | Jul. 28, 1903 | L.S. Heald, J.N. Heald | Sash-trimming machine |
| | 744,340 | Nov. 17, 1903 | J.N. Heald | Grinding Attachment for Lathes |
 | 810,426 | Jan. 23, 1906 | R.L. Morgan, J.N. Heald | Grinding-machine |
| | 1,285,159 | Nov. 19, 1918 | J.N. Heald | Grinding Machine |
