Door truck with a one piece frame and low friction wheels | Patent Number 06463625
US 06463625 B2Filled DateDec 20, 2000
Priority DateDec 20, 2000
Publication DateJun 20, 2002
Expiration DateDec 20, 2020
Inventor/ApplicantsDouglas C. Mittag
Douglas C. Mittag
Douglas C. Mittag
ExaminesWHITE, MICHAEL W
Art Unit3676
Technology Center3600
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