1775432

Information

• Patent Grant
• 1775432

• References
• Source

• Patent Number

  1,775,432

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1930
  94 years ago

• CPC

  • B21D13/04 - by rolling
  • Y10S29/041 - Taper tube making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working