509086

Information

• Patent Grant
• 509086

• References
• Source

• Patent Number

  509,086

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1893
  131 years ago

• CPC

  • B23Q35/00 - Control systems or devices for copying directly from a pattern or a master model Devices for use in copying manually
  • Y10T409/500164 - with regulation of operation by templet, card, or other replaceable information supply
  • Y10T409/504264 - Cycloidal surface
  • Y10T409/508528 - Plural independently positioned cutters

• US Classifications

  • 409 - Gear cutting, milling, or planing