1658177

Information

• Patent Grant
• 1658177

• References
• Source

• Patent Number

  1,658,177

• Date Filed

  Not available

• Date Issued

  Tuesday, February 7, 1928
  96 years ago

• CPC

  • G03C5/3014 - Hydrazine; Hydroxylamine; Urea; Derivatives thereof
  • Y10S430/135 - Cine film

• US Classifications

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