1485147

Information

• Patent Grant
• 1485147

• References
• Source

• Patent Number

  1,485,147

• Date Filed

  Not available

• Date Issued

  Tuesday, February 26, 1924
  102 years ago

• CPC

  • G03B21/08 - affording epidiascopic projection
  • Y10S353/04 - Opaque

• US Classifications

  • 353 - Optics: image projectors