1255919

Information

• Patent Grant
• 1255919

• References
• Source

• Patent Number

  1,255,919

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1918
  106 years ago

• CPC

  • G01N3/307 - generated by a compressed or tensile-stressed spring generated by pneumatic or hydraulic means
  • B25D9/005 - Devices for testing the tool's performance

• US Classifications

  • 073 - Measuring and testing
  • 310 - Electrical generator or motor structure