Search Images Play Gmail Drive Calendar Translate Blogger More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberDE69031540 D1
Publication typeGrant
Application numberDE1990631540
Publication dateNov 6, 1997
Filing dateJan 25, 1990
Priority dateJan 27, 1989
Also published asCA1326619C, DE69004816D1, DE69004816T2, DE69031540T2, EP0380349A1, EP0380349B1, EP0553893A2, EP0553893A3, EP0553893B1, US4899728, US4934338
Publication number1990631540, 90631540, DE 69031540 D1, DE 69031540D1, DE-D1-69031540, DE1990631540, DE69031540 D1, DE69031540D1, DE90631540
InventorsJohn C Hollick, Rolf W Peter
ApplicantSolarwall International Ltd
Export CitationBiBTeX, EndNote, RefMan
Vorrichtung zur Vorwärmung von Luft zur Gebäudelüftung An apparatus for preheating ventilation air for buildings translated from German
DE 69031540 D1
Abstract  available in
Description  available in
Claims  available in
International ClassificationE04D13/18, F24J2/04, F24J2/28, F24D5/00
Cooperative ClassificationF24J2/0444, Y02B10/20, Y02E10/44, F24D5/005, F24J2/28
European ClassificationF24J2/04B10, F24D5/00B, F24J2/28
Legal Events
Oct 29, 19988364No opposition during term of opposition
Apr 10, 20038320Willingness to grant licenses declared (paragraph 23)