2552582

Information

• Patent Grant
• 2552582

• References
• Source

• Patent Number

  2,552,582

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1951
  73 years ago

• CPC

  • B28D5/021 - by drilling

• US Classifications

  • 125 - Stone working
  • 219 - Electric heating
  • 331 - Oscillators