1730942

Information

• Patent Grant
• 1730942

• References
• Source

• Patent Number

  1,730,942

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1929
  95 years ago

• CPC

  • B44B3/04 - wherein non-plane surfaces are worked
  • B44B2700/025 - for engraving a surface of revolution
  • Y10T29/47 - Burnishing

• US Classifications

  • 029 - Metal working