2420669

Information

• Patent Grant
• 2420669

• References
• Source

• Patent Number

  2,420,669

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1947
  77 years ago

• CPC

  • A61N1/445 - Hydro-electric baths

• US Classifications

  • 607 - Surgery: light, thermal, and electrical application