2020441

Information

• Patent Grant
• 2020441

• References
• Source

• Patent Number

  2,020,441

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1935
  89 years ago

• CPC

  • B21K7/08 - base plates for rails
  • E01B9/40 - Tie-plates for flat-bottom rails

• US Classifications

  • 228 - Metal fusion bonding
  • 238 - Railways: surface track