3534829

Information

• Patent Grant
• 3534829

• References
• Source

• Patent Number

  3,534,829

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1970
  54 years ago

• CPC

  • E04B1/86 - slab-shaped
  • E04B2/7403 - with special measures for sound or thermal insulation including fire protection
  • E04B2001/8452 - with peripheral frame members
  • E04B2001/8466 - with an intermediate layer formed of lines or dots of elastic material

• US Classifications

  • 181 - Acoustics