3817618

Information

• Patent Grant
• 3817618

• References
• Source

• Patent Number

  3,817,618

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  50 years ago

• CPC

  • G03D13/002 - Heat development apparatus
  • G03B27/06 - for automatic repeated copying of the same original
  • G03B27/303 - Gas processing

• US Classifications

  • 355 - Photocopying
  • 353 - Optics: image projectors