3809476

Information

• Patent Grant
• 3809476

• References
• Source

• Patent Number

  3,809,476

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • G03B27/22 - by stretching over a curved surface
  • G03B27/30 - adapted to be combined with processing apparatus

• US Classifications

  • 355 - Photocopying
  • D18 - Printing and office machinery