1972507

Information

• Patent Grant
• 1972507

• References
• Source

• Patent Number

  1,972,507

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1934
  90 years ago

• CPC

  • B41F5/08 - with several printing units in both superimposed and sequential arrangement

• US Classifications

  • 270 - Sheet-material associating
  • 101 - Printing