US PATENT SUBCLASS 291 / 19
HEATERS
Current as of: June, 1999
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DEFINITION
Classification: 291/19
Heating devices for heating or drying the sand, the compressed air, or the sand-delivery apparatus, as by hot air, gas-engine exhaust, etc.
SEE OR SEARCH CLASS
222, Dispensing,
113, 131, and 146.1+ for other dispensers combined with heaters.
