| Patents for Harold J. Siekmann |
Patents 61 -
64
of 64
      |
| Number | Date | Patentee | Title | Type |
| 2,773,471 | Dec. 11, 1956 | H.J. Siekmann, W. Okvit, G.J. Kasselmann | Speed Indicating Plate for Machine Tools | metalworking machine mechanisms |
| 2,799,186 | Jul. 16, 1957 | W.A. Kimsey, H.J. Siekmann | Cable Carrier for Long Bed Machine Tools | metalworking machine mechanisms |
| 2,807,973 | Oct. 01, 1957 | H.J. Siekmann, W.H. Meyer, administrator, W.R. Meyer, deceased (estate of) | Apparatus for Manufacturing Crankshafts Automatically | crankshaft lathes |
| 2,807,974 | Oct. 01, 1957 | H.J. Siekmann, W.H. Meyer, administrator, W.R. Meyer, deceased (estate of) | Automatic Bearing Lathe | crankshaft lathes |
