US PATENT SUBCLASS 126 / *
.~ Submerged


Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

344  DF  WATER HEATERS {7}
*.~ Submerged {3}
367  DF  .~.~> Portable
366  DF  .~.~> Closed systems pipes
368  DF  .~.~> Stationary