H. R. Langman

Identifiers

  • Open LibraryOL2332149A

Top Subjects

  • Magneto (1)
  • Clocks and watches, Electric (1)
  • Electricity -- Experiments (1)
  • Electric apparatus and appliances -- Amateurs' manuals (1)
  • Electric engineering -- Study and teaching (1)
  • Electric machinery -- Design and construction (1)

Books by H. R. Langman

Total count: 4