3640293

Information

• Patent Grant
• 3640293

• References
• Source

• Patent Number

  3,640,293

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  53 years ago

• CPC

  • G03D15/00 - Apparatus for treating processed material
  • Y10S15/13 - Magnetic tape cleaner

• US Classifications

  • 134 - Cleaning and liquid contact with solids
  • 015 - Brushing, scrubbing, and general cleaning
  • 352 - Optics: motion pictures