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Englert/Rollformer, Inc.
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Willow Grove, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Roll forming machine for an indeterminate length metal roof panel
Patent number
5,664,451
Issue date
Sep 9, 1997
Englert/Rollformer, Inc.
Robert E. Schultz
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Metal roof panel of indeterminate length
Patent number
D372545
Issue date
Aug 6, 1996
Englert/Rollformer, Inc.
Robert E. Schultz
D25 - Building units and construction elements