3898855

Information

• Patent Grant
• 3898855

• References
• Source

• Patent Number

  3,898,855

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1975
  50 years ago

• CPC

  • E01C13/102 - Civil engineering aspects of the construction of ice rinks or sledge runs made from frozen-liquid, semi-liquid or frozen-pasty substances

• US Classifications

  • 062 - Refrigeration
  • 249 - Static molds
  • 472 - Amusement devices