2557918

Information

• Patent Grant
• 2557918

• References
• Source

• Patent Number

  2,557,918

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1951
  73 years ago

• CPC

  • B29C33/0033 - constructed for making articles provided with holes
  • B29C37/0021 - and using a rotating movement to unscrew articles
  • B29C43/40 - with means for cutting the article
  • B29D19/04 - by cutting, milling, turning, stamping, or perforating moulded parts Surface treatment of buttons
  • B29L2001/00 - Articles provided with screw threads
  • B29L2031/565 - for containers

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus