1930140

Information

• Patent Grant
• 1930140

• References
• Source

• Patent Number

  1,930,140

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1933
  92 years ago

• CPC

  • G03C5/386 - Hardening-fixing

• US Classifications

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