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Ronald Clyde Shirley
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Bettendorf, IA, US
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last 30 patents
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Patent Grant
Plastic web sealing apparatus using hot air heated sealing roller
Patent number
4,067,761
Issue date
Jan 10, 1978
The Kartridg Pak Co.
Ronald Clyde Shirley
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL