1916567

Information

• Patent Grant
• 1916567

• References
• Source

• Patent Number

  1,916,567

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1933
  91 years ago

• CPC

  • B27B31/06 - Adjusting equipment
  • G02B21/0016 - Technical microscopes
  • Y10S116/39 - Dial magnifiers

• US Classifications

  • 353 - Optics: image projectors
  • 116 - Signals and indicators