994837

Information

• Patent Grant
• 994837

• References
• Source

• Patent Number

  994,837

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1911
  113 years ago

• CPC

  • B23K9/0008 - Welding without shielding means against the influence of the surrounding atmosphere

• US Classifications

  • 314 - Electric lamp and discharge devices: consumable electrodes