1487242

Information

• Patent Grant
• 1487242

• References
• Source

• Patent Number

  1,487,242

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1924
  101 years ago

• CPC

  • B21D28/285 - punching outwards
  • B21D28/28 - in tubes or other hollow bodies
  • Y10T29/34 - Means for forming clench-tongue [eg, for tieband]

• US Classifications

  • 029 - Metal working