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Josh Roberts
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Dover, NH, US
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Patents Grants
last 30 patents
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Patent Grant
Cylindrical heat exchanger
Patent number
6,644,393
Issue date
Nov 11, 2003
Laars, Inc.
Josh Roberts
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
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Patent Application
CONDENSING BOILER AND WATER HEATER
Publication number
20100221675
Publication date
Sep 2, 2010
Laars Heating Systems Company
Scott Rowe
F22 - STEAM GENERATION
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Patent Application
CYLINDRICAL HEAT EXCHANGER
Publication number
20030192684
Publication date
Oct 16, 2003
Josh Roberts
F28 - HEAT EXCHANGE IN GENERAL