3868756

Information

• Patent Grant
• 3868756

• References
• Source

• Patent Number

  3,868,756

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  50 years ago

• CPC

  • B21D28/04 - Centering the work Positioning the tools
  • B23D33/12 - Equipment for indicating where to cut
  • G03B15/00 - Special procedures for taking photographs Apparatus therefor
  • G03F9/00 - Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces
  • Y10T29/49769 - Using optical instrument [excludes mere human eyeballing]
  • Y10T29/49789 - Obtaining plural product pieces from unitary workpiece

• US Classifications

  • 029 - Metal working