3657757

Information

• Patent Grant
• 3657757

• References
• Source

• Patent Number

  3,657,757

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • A43B3/04 - with rubber or elastic insertions or gussets

• US Classifications

  • 012 - Boot and shoe making
  • 002 - Apparel
  • 036 - Boots, shoes, and leggings