3568789

Information

• Patent Grant
• 3568789

• References
• Source

• Patent Number

  3,568,789

• Date Filed

  Not available

• Date Issued

  Tuesday, March 9, 1971
  53 years ago

• CPC

  • A47L15/4223 - Devices for water discharge
  • A47L15/0052 - Noise reduction

• US Classifications

  • 181 - Acoustics