1697434

Information

• Patent Grant
• 1697434

• References
• Source

• Patent Number

  1,697,434

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1929
  96 years ago

• CPC

  • B28B1/48 - by removing material from solid section preforms for forming hollow articles
  • Y10T83/02 - Other than completely through work thickness
  • Y10T83/8735 - With means providing for plural steps in tool stroke
  • Y10T83/944 - Multiple punchings

• US Classifications

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