2233297

Information

• Patent Grant
• 2233297

• References
• Source

• Patent Number

  2,233,297

• Date Filed

  Not available

• Date Issued

  Tuesday, February 25, 1941
  84 years ago

• CPC

  • B63B49/00 - Arrangements of nautical instruments or navigational aids
  • B63B2726/00 - Miscellaneous signalling devices and draft indicators

• US Classifications

  • 073 - Measuring and testing
  • 340 - Communications: electrical
  • 429 - Chemistry: electrical current producing apparatus, product, and process