B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/146, 257/27
B21D 53/02 (2006.01) B21C 37/15 (2006.01) B21C 37/20 (2006.01) B21D 31/00 (2006.01) F28F 1/04 (2006.01) F28F 1/12 (2006.01)
Patent
CA 1039934
ABSTRACT OF THE INVENTION A heat exchanger embodying an elongated tubular member with integral elongated fins extending transversely thereacross and projecting outwardly therefrom, the fins having integral opening extending therethrough.
242779
O'connor Joseph M.
Pasternak Stephen F.
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