2701196

Information

• Patent Grant
• 2701196

• References
• Source

• Patent Number

  2,701,196

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1955
  70 years ago

• CPC

  • G03F3/06 - by masking

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 355 - Photocopying