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Patent US1924272 - LOCOMOTIVE FEED WATER SYSTEM
LOCOMOTIVE FEED WATER SYSTEM
Joel S. Coffin et al
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Patent number
: 1924272
Filing date
: 28 Jan 1929
Issue date
: 29 Aug 1933
Inventors
:
Joel S. Coffin
,
Joel S. Coffin
Current U.S. Classification
:
122/441
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US5050670
26 Jul 1990
24 Sep 1991
Four piece elbow for a multi-tube heat exchanger
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