1808320

Information

• Patent Grant
• 1808320

• References
• Source

• Patent Number

  1,808,320

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • B41B13/04 - with means for justifying

• US Classifications

  • 396 - Photography
  • 400 - Typewriting machines