1991582

Information

• Patent Grant
• 1991582

• References
• Source

• Patent Number

  1,991,582

• Date Filed

  Not available

• Date Issued

  Tuesday, February 19, 1935
  90 years ago

• CPC

  • B23K1/018 - Unsoldering Removal of melted solder or other residues
  • Y10T29/49304 - Valve tappet making
  • Y10T29/49313 - including casting

• US Classifications

  • 029 - Metal working
  • 228 - Metal fusion bonding