RT Web Page SR Electronic(1) ID 9745112 A1 E. S. Gaddis T1 Special case of two tubes passes YR 2015 FD 2015-12-17 NO two-tube side pass case, PB Begell House Inc. PP New York DO 10.1615/hedhme.a.000112 RD 2025-05-03 UL https://hedhme.com/content_map/?article_id=112&link_id=9745 WT HEDH Multimedia - Heat Exchanger Design Handbook, Multimedia Edition WP 2015-12-17