2138730

Information

• Patent Grant
• 2138730

• References
• Source

• Patent Number

  2,138,730

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1938
  87 years ago

• CPC

  • A47F5/025 - having mechanical drive
  • Y10T74/18464 - Reciprocating rack connections

• US Classifications

  • 108 - Horizontally supported planar surfaces
  • 033 - Geometrical instruments
  • 074 - Machine element or mechanism
  • 384 - Bearings