3871094

Information

• Patent Grant
• 3871094

• References
• Source

• Patent Number

  3,871,094

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1975
  50 years ago

• CPC

  • B21D51/10 - conically or cylindrically shaped objects
  • Y10S29/041 - Taper tube making
  • Y10T29/49574 - Musical instrument or tuning fork making
  • Y10T29/49805 - Shaping by direct application of fluent pressure

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming
  • 084 - Music