US PATENT SUBCLASS 220 / 4.17
.~.~.~ Bolted construction

Current as of: June, 1999
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220 /   HD   RECEPTACLES

4.01  DF  SECTIONAL {9}
4.12  DF  .~ Tank for fluids {3}
4.16  DF  .~.~ Knockdown {1}
4.17.~.~.~ Bolted construction

DEFINITION

Classification: 220/4.17

Bolted construction:

(under subclass 4.16) Tank wherein the sections are secured to each other by one or more bolts.