US PATENT SUBCLASS 165 / DIG 171
.~ Including means at top end of vertical pipe to distribute liquid film on pipe exterior

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


165 /   HD   HEAT EXCHANGE

DIG 163  DD  INCLUDING A MEANS TO FORM FLUID FILM ON HEAT TRANSFER SURFACE (E.G., TRICKLE) {8}
DIG 171.~ Including means at top end of vertical pipe to distribute liquid film on pipe exterior