3553637

Information

• Patent Grant
• 3553637

• References
• Source

• Patent Number

  3,553,637

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1971
  54 years ago

• CPC

  • G08B1/08 - using electric transmission; transformation of alarm signals to electrical signals from a different medium
  • B63G7/08 - of acoustic type

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 114 - Ships