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John S. Rapp
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Noblesville, IN, US
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last 30 patents
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Patent Grant
Automatic purging system having a pressure sensor and a timing mech...
Patent number
4,285,446
Issue date
Aug 25, 1981
Ransburg Corporation
John S. Rapp
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL