2230639

Information

• Patent Grant
• 2230639

• References
• Source

• Patent Number

  2,230,639

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1941
  83 years ago

• CPC

  • B23Q9/00 - Arrangements for supporting or guiding portable metal-working machines or apparatus
  • B23Q2709/00 - Portable machines or devices for the cylindrical bores of valve bodies
  • Y10S408/709 - Reboring piston receiving cylinder
  • Y10T408/50 - with product handling or receiving means
  • Y10T408/5621 - Connected to Tool through opening being enlarged by Tool
  • Y10T409/503444 - Concave work surface [e.g., bearing, stereotype printing plate, etc,]

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 408 - Cutting by use of rotating axially moving tool