1557715

Information

• Patent Grant
• 1557715

• References
• Source

• Patent Number

  1,557,715

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1925
  99 years ago

• CPC

  • B23Q7/002 - Screw or rotary spiral conveyors
  • B23G1/185 - specially adapted for making nuts
  • Y10T408/494 - and gear to drive infeed means

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 142 - Wood turning
  • 470 - Threaded, headed fastener, or washer making: process and apparatus