1915432

Information

• Patent Grant
• 1915432

• References
• Source

• Patent Number

  1,915,432

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1933
  91 years ago

• CPC

  • D21F5/146 - Vacuum seals

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 226 - Advancing material of indeterminate length