@misc{indiciae817e1d5a98d1,
  title = {Inductive liquid level detection system Patent},
  author = {Grebe, V. J. and Prioletti, J. A. and Roeske, P. W. and Vary, A.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19710001026},
  note = {Source identifier: 19710001026}
}