3316999

Information

• Patent Grant
• 3316999

• References
• Source

• Patent Number

  3,316,999

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1967
  58 years ago

• CPC

  • E04B1/8236 - Stage shells
  • G10K11/20 - Reflecting arrangements

• US Classifications

  • 181 - Acoustics
  • 052 - Static structures
  • 472 - Amusement devices