1779653

Information

• Patent Grant
• 1779653

• References
• Source

• Patent Number

  1,779,653

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1930
  94 years ago

• CPC

  • G03B17/10 - Soundproof bodies

• US Classifications

  • 352 - Optics: motion pictures