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Frank W. Hetman Jr.
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Chanhassen, MN, US
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last 30 patents
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Patent Grant
Universal sash tether clasp and anchoring apparatus for window coun...
Patent number
6,338,222
Issue date
Jan 15, 2002
Mon-Ray, Inc.
Frank W. Hetman
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES