3772973

Information

• Patent Grant
• 3772973

• References
• Source

• Patent Number

  3,772,973

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  51 years ago

• CPC

  • F21K5/023 - Ignition devices in photo flash bulbs
  • G03B9/70 - with flash-synchronising contacts
  • G03B17/42 - Interlocking between shutter operation and advance of film or change of plate or cut-film

• US Classifications

  • 396 - Photography