3816940

Information

• Patent Grant
• 3816940

• References
• Source

• Patent Number

  3,816,940

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  50 years ago

• CPC

  • A45D20/44 - Hair-drying helmets whereon the ventilating means and the heating means are apart from the helmet

• US Classifications

  • 034 - Drying and gas or vapor contact with solids