1720784

Information

• Patent Grant
• 1720784

• References
• Source

• Patent Number

  1,720,784

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1929
  95 years ago

• CPC

  • B23G9/004 - Finishing screws
  • B23G9/001 - Working screws
  • Y10T29/5109 - Lathe
  • Y10T29/5113 - Commutator
  • Y10T82/135 - Cam-controlled cutter
  • Y10T408/344 - including Tool operating on rotating work
  • Y10T408/3796 - with interconnected means to simultaneously feed tools

• US Classifications

  • 029 - Metal working
  • 082 - Turning
  • 408 - Cutting by use of rotating axially moving tool
  • 470 - Threaded, headed fastener, or washer making: process and apparatus