2021657

Information

• Patent Grant
• 2021657

• References
• Source

• Patent Number

  2,021,657

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1935
  89 years ago

• CPC

  • B43K21/14 - with writing-cores automatically replaced from magazines

• US Classifications

  • 401 - Coating implements with material supply