2153357

Information

• Patent Grant
• 2153357

• References
• Source

• Patent Number

  2,153,357

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1939
  85 years ago

• CPC

  • G10K11/20 - Reflecting arrangements
  • E04B1/8409 - sheet-shaped
  • G10K11/16 - Methods or devices for protecting against, or damping of, acoustic waves
  • E04B2001/8272 - Resiliently mounted wall cladding acting as a diaphragmatic sound damper
  • E04B2001/8414 - with non-planar face
  • E04B2001/8442 - Tray type elements

• US Classifications

  • 181 - Acoustics
  • 052 - Static structures