US PATENT SUBCLASS 122 / *
.~ Over firebox
Current as of:
June, 1999
Click
HD
for Main Headings
Click for
All Classes
Internet Version by
PATENTEC
© 1999
     
Terms of Use
122 /
HD
LIQUID HEATERS AND VAPORIZERS
235.11
DF
WATER TUBE
{52}
*
.~ Over firebox {2}
288
DF
.~.~
> Headers at right angles
*
DD
.~.~
> Water grate {1}