3749491

Information

• Patent Grant
• 3749491

• References
• Source

• Patent Number

  3,749,491

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1973
  51 years ago

• CPC

  • G03D13/002 - Heat development apparatus
  • G03B27/22 - by stretching over a curved surface
  • G03B27/303 - Gas processing

• US Classifications

  • 355 - Photocopying