1728506

Information

• Patent Grant
• 1728506

• References
• Source

• Patent Number

  1,728,506

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1929
  95 years ago

• CPC

  • D05B63/04 - Loop-taker thread guards
  • D05B57/143 - Vertical axis type

• US Classifications

  • 112 - Sewing