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Donn Van Der Schie
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Grand Haven, MI, US
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last 30 patents
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Patent Grant
Zero pressure accumulation conveyor and brake assembly
Patent number
4,819,788
Issue date
Apr 11, 1989
Ermanco Incorporated
Donn R. Van Der Schie
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Patent Grant
Divider switch for roller conveyors
Patent number
4,264,002
Issue date
Apr 28, 1981
Ermanco Incorporated
Donn Van Der Schie
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL