US PATENT SUBCLASS 137 / 149
.~.~.~.~ Co-axial within flow passage
Current as of:
June, 1999
Click
HD
for Main Headings
Click for
All Classes
Internet Version by
PATENTEC
© 1999
Terms of Use
137 /
HD
FLUID HANDLING
123
DF
SIPHONS
{8}
142
DF
.~ With flow starting, stopping or maintaining means {7}
147
DF
.~.~ Pump or liquid displacement device for flow passage {2}
148
DF
.~.~.~ Piston {1}
149
.~.~.~.~ Co-axial within flow passage
DEFINITION
Classification: 137/149
(under subclass 148) Apparatus in which the piston is moved in the flow passage of the siphon.
