1730904

Information

• Patent Grant
• 1730904

• References
• Source

• Patent Number

  1,730,904

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1929
  95 years ago

• CPC

  • G10G3/02 - using mechanical means only
  • G10F5/04 - Tune barrels, sheets, rollers, spools, or the like

• US Classifications

  • 400 - Typewriting machines