991512

Information

• Patent Grant
• 991512

• References
• Source

• Patent Number

  991,512

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1911
  113 years ago

• CPC

  • E05F1/063 - with complementary, substantially identical and slidingly cooperating cam surfaces
  • Y10T16/5373 - by fluid lubricant
  • Y10T16/53988 - On axially twisted or helically fluted element

• US Classifications

  • 016 - Miscellaneous hardware