1997664

Information

• Patent Grant
• 1997664

• References
• Source

• Patent Number

  1,997,664

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1935
  90 years ago

• CPC

  • B42F13/04 - with cords, coils, or chains
  • Y10T74/18776 - Rectilinear rack

• US Classifications

  • 074 - Machine element or mechanism
  • 402 - Binder device releasably engaging aperture or notch of sheet