1979503

Information

• Patent Grant
• 1979503

• References
• Source

• Patent Number

  1,979,503

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1934
  90 years ago

• CPC

  • E21D15/12 - with locking devices located near head or foot

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force