1691759

Information

• Patent Grant
• 1691759

• References
• Source

• Patent Number

  1,691,759

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1928
  96 years ago

• CPC

  • E05F1/066 - Helical grooves, slots, threads or the like
  • Y10T16/53985 - Between opposing surfaces
  • Y10T16/53988 - On axially twisted or helically fluted element

• US Classifications

  • 016 - Miscellaneous hardware