2621646

Information

• Patent Grant
• 2621646

• References
• Source

• Patent Number

  2,621,646

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1952
  72 years ago

• CPC

  • B27B3/32 - the stretching devices being equipped with screw-threaded or wedging means
  • B28D1/127 - Straight

• US Classifications

  • 125 - Stone working