2999420

Information

• Patent Grant
• 2999420

• References
• Source

• Patent Number

  2,999,420

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1961
  63 years ago

• CPC

  • G03B39/04 - using moving plate or film

• US Classifications

  • 396 - Photography
  • 346 - Recorders
  • 415 - Rotary kinetic fluid motors or pumps