3435909

Information

• Patent Grant
• 3435909

• References
• Source

• Patent Number

  3,435,909

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1969
  55 years ago

• CPC

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

• US Classifications

  • 181 - Acoustics
  • 052 - Static structures
  • 160 - Flexible or portable closure, partition, or panel
  • 352 - Optics: motion pictures
  • 472 - Amusement devices