Heat exchange element | Patent Number 05409057

US 05409057 NA
Application Number8006926
Publication Number-
Pendency2 years, 3 months, 3 days
Filled DateJan 22, 1993
Priority DateJan 22, 1993
Publication Date-
Expiration DateJan 22, 2013
Inventor/Applicants L. Robert Zifferer
ExaminesFLANIGAN, ALLEN J
Art Unit3407
Technology Center3400
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