1330235

Information

• Patent Grant
• 1330235

• References
• Source

• Patent Number

  1,330,235

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1920
  105 years ago

• CPC

  • G03B17/24 - with means for separately producing marks on the film
  • G03B2217/242 - Details of the marking device
  • G03B2217/245 - Mechanical devices

• US Classifications

  • 396 - Photography