2157108

Information

• Patent Grant
• 2157108

• References
• Source

• Patent Number

  2,157,108

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1939
  85 years ago

• CPC

  • A63H33/3077 - Typewriters

• US Classifications

  • 400 - Typewriting machines
  • 101 - Printing