1632973

Information

• Patent Grant
• 1632973

• References
• Source

• Patent Number

  1,632,973

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1927
  97 years ago

• CPC

  • G09F21/18 - by ships or other floating means

• US Classifications

  • 353 - Optics: image projectors
  • 114 - Ships