| Patents for Frederick Diehl |
Patents 16 -
27
of 27
      |
| Number | Date | Patentee | Title | Type |
| 1,415,627 | May 09, 1922 | G.E. Giambiasi | Optical Scale for Vernier Measurements | rule graduations |
| 1,440,863 | Jan. 02, 1923 | F. Diehl | Electrically-lighted sewing machine | |
| 1,455,391 | May 15, 1923 | F. Diehl | Sewing-machine-motor bracket | |
| 1,478,701 | Dec. 25, 1923 | F. Diehl | Controller for sewing-machine motors | |
| 1,482,461 | Feb. 05, 1924 | F. Diehl | Belt coupling | |
| 1,521,605 | Jan. 06, 1925 | F. Diehl | Brush holder for dynamo-electric machines | motor brush holders |
| 1,591,740 | Jul. 06, 1926 | J. Brewer | Micrometer | micrometers |
| 1,709,935 | Apr. 23, 1929 | F. Diehl | Starting device for electric motors | electric motors |
| 1,721,249 | Jul. 16, 1929 | F. Diehl | Gyratory fan | |
| 1,777,877 | Oct. 07, 1930 | F. Diehl | Snap switch | electric switches |
| 1,823,533 | Sep. 15, 1931 | F. Diehl | Phonograph turntable | |
| 1,929,092 | Oct. 03, 1933 | J.M. Naul, F. Diehl | Two-speed phonograph driving device | |
