1720815

Information

• Patent Grant
• 1720815

• References
• Source

• Patent Number

  1,720,815

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1929
  95 years ago

• CPC

  • F16D69/027 - Compositions based on metals or inorganic oxides
  • Y10S76/04 - Chromium

• US Classifications

  • 188 - Brakes
  • 076 - Metal tools and implements, making
  • 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions