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Storage structure

  • US 3,340,658 A
  • Filed: 08/02/1965
  • Issued: 09/12/1967
  • Est. Priority Date: 08/02/1965
  • Status: Expired due to Term
First Claim
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1. A STORAGE STRUCTURE, COMPRISING A GENERALLY CYLINDRICAL UPPER SECTION, AND A LOWER SECTION HAVING TAPERING WALLS WHEREBY THE BOTTOM INTERNAL DIAMETER OF SAID LOWER SECTION EXCEEDS THE BOTTOM INTERNAL DIAMETER OF SAID UPPER SECTION BY AN AMOUNT IN THE RANGE OF TWO TO 3.5 PERCENT OF THE SLANT HEIGHT OF SAID LOWER SECTION.

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