720015

Information

• Patent Grant
• 720015

• References
• Source

• Patent Number

  720,015

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1903
  121 years ago

• CPC

  • B63B43/20 - Feelers

• US Classifications

  • 033 - Geometrical instruments
  • 116 - Signals and indicators
  • 340 - Communications: electrical
  • 367 - Communications, electrical: acoustic wave systems and devices