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Bert Steffens
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D-5470 Andernach 13, DE
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last 30 patents
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Patent Grant
Apparatus for separating the components of cellulose sanitary articles
Patent number
4,664,320
Issue date
May 12, 1987
Bert Steffens
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Patent Grant
Method and apparatus for separating the components of cellulose san...
Patent number
4,500,040
Issue date
Feb 19, 1985
Bert Steffens
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Process for the continuous separation of discarded hygiene articles...
Patent number
4,303,501
Issue date
Dec 1, 1981
Bert Steffens
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL