1892812

Information

• Patent Grant
• 1892812

• References
• Source

• Patent Number

  1,892,812

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1933
  92 years ago

• CPC

  • B31F1/242 - the corrugations being obliquely inclined to the web feed

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus