1473798

Information

• Patent Grant
• 1473798

• References
• Source

• Patent Number

  1,473,798

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1923
  101 years ago

• CPC

  • G03B17/24 - with means for separately producing marks on the film
  • G03B2217/245 - Mechanical devices

• US Classifications

  • 396 - Photography