US PATENT SUBCLASS 48 / 51
.~.~.~ Piston
Current as of:
June, 1999
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48 /
HD
GAS: HEATING AND ILLUMINATING
*
DD
ACETYLENE
{5}
*
DD
.~ Generators {5}
38
DF
.~.~ Carbide feed {11}
51
.~.~.~ Piston
DEFINITION
Classification: 48/51
Generators where a piston is used to feed the carbid.