1631683

Information

• Patent Grant
• 1631683

• References
• Source

• Patent Number

  1,631,683

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1927
  97 years ago

• CPC

  • E01B29/28 - the fastening means being of screw-and-nut type Apparatus therefor, adapted to additionally drilling holes
  • B25H1/0078 - Guiding devices for hand tools
  • Y10T408/91 - Machine frame

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 104 - Railways