1957507

Information

• Patent Grant
• 1957507

• References
• Source

• Patent Number

  1,957,507

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1934
  90 years ago

• CPC

  • B23C3/22 - Forming overlapped joints
  • Y10T409/305544 - with work holder

• US Classifications

  • 409 - Gear cutting, milling, or planing