3295273

Information

• Patent Grant
• 3295273

• References
• Source

• Patent Number

  3,295,273

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1967
  58 years ago

• CPC

  • E06B5/20 - for insulation against noise
  • E06B3/822 - with an internal foursided frame
  • E04B2001/8423 - Tray or frame type panels or blocks, with or without acoustical filling
  • E04B2001/8452 - with peripheral frame members

• US Classifications

  • 052 - Static structures
  • 181 - Acoustics