3691263

Information

• Patent Grant
• 3691263

• References
• Source

• Patent Number

  3,691,263

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • C03B19/04 - by centrifuging
  • B22D13/04 - of shallow solid or hollow bodies
  • B29C33/0038 - with sealing means or the like
  • B29C41/045 - the axis being placed vertically
  • B29D11/00471 - made by rotational casting
  • B29L2031/7602 - Maps

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 065 - Glass manufacturing
  • 351 - Optics: eye examining, vision testing and correcting