1988106

Information

• Patent Grant
• 1988106

• References
• Source

• Patent Number

  1,988,106

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1935
  89 years ago

• CPC

  • G03F1/88 - prepared by photographic processes for production of originals simulating relief

• US Classifications

  • 355 - Photocopying