| Patents for Penrose E. Chapman |
Patents 16 -
29
of 29
      |
| Number | Date | Patentee | Title | Type |
| 1,699,833 | Jan. 22, 1929 | P.E. Chapman | Picture-projecting apparatus | projectors |
| 1,759,479 | May 20, 1930 | P.E. Chapman | Testing instrument | electric or electronic testing apparatus |
| 1,763,389 | Jun. 10, 1930 | P.E. Chapman | Ice-cream spoon | culinary utensils |
| 1,839,865 | Jan. 05, 1932 | P.E. Chapman | Liquid-level regulator | lamps |
| 1,902,542 | Mar. 21, 1933 | P.E. Chapman | Testing instrument and regulator | electric or electronic testing apparatus |
| 1,924,913 | Aug. 29, 1933 | P.E. Chapman, C.L. Chittenden | Growler type testing device | electrical devices |
| 2,053,764 | Sep. 08, 1936 | P.E. Chapman | Winding and coil binding machine | electric motor making |
| 2,157,847 | May 09, 1939 | P.E. Chapman | Despooler | electric motor making |
| 2,186,820 | Jan. 09, 1940 | P.E. Chapman | Coil winding machine | electric motor making |
| 2,224,180 | Dec. 10, 1940 | P.E. Chapman | Coil binding machine | electric motor making |
| 2,259,291 | Oct. 14, 1941 | P.E. Chapman | Traverse mechanism for winding machines | electric motor making |
| 2,305,515 | Dec. 15, 1942 | P.E. Chapman | Paper armature slot peg | electric motor making |
| 2,595,332 | May 06, 1952 | P.E. Chapman, Jr., P.E. Chapman | Winding machine | wire winding machines |
| 2,622,128 | Dec. 16, 1952 | P.E. Chapman | Growler type testing device | electrical devices |
