1711684

Information

• Patent Grant
• 1711684

• References
• Source

• Patent Number

  1,711,684

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1929
  95 years ago

• CPC

  • G03F5/02 - by projection methods

• US Classifications

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