1975290

Information

• Patent Grant
• 1975290

• References
• Source

• Patent Number

  1,975,290

• Date Filed

  Not available

• Date Issued

  Tuesday, October 2, 1934
  90 years ago

• CPC

  • B23C3/05 - Finishing valves or valve seats
  • Y10T82/29 - Attachment for cutting a valve
  • Y10T409/306216 - Randomly manipulated, work supported, or work following device
  • Y10T409/308624 - with limit means to aid in positioning of cutter bit or work [e.g., gauge, stop, etc.]

• US Classifications

  • 082 - Turning
  • 409 - Gear cutting, milling, or planing