1980725

Information

• Patent Grant
• 1980725

• References
• Source

• Patent Number

  1,980,725

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1934
  90 years ago

• CPC

  • B41L39/06 - for starting or stopping operation of sheet or web feed
  • Y10S137/903 - Rubber valve springs

• US Classifications

  • 101 - Printing
  • 137 - Fluid handling
  • 271 - Sheet feeding or delivering