@misc{indiciaefa17cfbe388b,
  title = {Resistance Welder Using 480-Vac Ground-Fault Interrupter},
  author = {Huston, Steven W. and Kroy, Ralph E. and Macfarlane, Douglas I.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890000592},
  note = {Source identifier: 19890000592}
}