1806437

Information

• Patent Grant
• 1806437

• References
• Source

• Patent Number

  1,806,437

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1931
  93 years ago

• CPC

  • B24D15/085 - with reciprocating whetstones
  • Y10S76/09 - Razor blade sharpeners

• US Classifications

  • 451 - Abrading
  • 076 - Metal tools and implements, making