1638933

Information

• Patent Grant
• 1638933

• References
• Source

• Patent Number

  1,638,933

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1927
  97 years ago

• CPC

  • C14B1/20 - using circular dished or coned knives

• US Classifications

  • 069 - Leather manufactures