US PATENT SUBCLASS 48 / 7
.~.~.~.~.~ Automatic switch

Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

*  DD  ACETYLENE {5}
*  DD  .~ Generators {5}
4  DF  .~.~ Water feed {15}
5  DF  .~.~.~ Holder operated {7}
6  DF  .~.~.~.~ Series {1}
7.~.~.~.~.~ Automatic switch

DEFINITION

Classification: 48/7

Generators in series of two or more in which the water-feed is controlled by the gas-holder and automatically directed from one generator to another.