3857635

Information

• Patent Grant
• 3857635

• References
• Source

• Patent Number

  3,857,635

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • B41B13/00 - Equipment specially adapted for photographing mounted characters or the like
  • G03F7/2002 - with visible light or UV light, through an original having an opaque pattern on a transparent support

• US Classifications

  • 355 - Photocopying