1961540

Information

• Patent Grant
• 1961540

• References
• Source

• Patent Number

  1,961,540

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1934
  90 years ago

• CPC

  • B24B19/02 - for grinding grooves
  • B28D1/045 - Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
  • B28D1/048 - with a plurality of saw blades
  • Y10T29/29 - Railway-chair making

• US Classifications

  • 451 - Abrading
  • 029 - Metal working
  • 299 - Mining or in situ disintegration of hard material