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Leonard Shapiro
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Upper Darby, PA, US
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last 30 patents
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Patent Grant
Centrifuge apparatus
Patent number
4,761,157
Issue date
Aug 2, 1988
Pennwalt Corporation
Leonard Shapiro
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Rinsing on a solid bowl centrifuge
Patent number
4,654,022
Issue date
Mar 31, 1987
Pennwalt Corporation
Leonard Shapiro
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Hard surfacing for a centrifuge conveyor
Patent number
4,416,656
Issue date
Nov 22, 1983
Pennwalt Corporation
Leonard Shapiro
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Three-phase decanter
Patent number
4,335,846
Issue date
Jun 22, 1982
Pennwalt Corporation
Leonard Shapiro
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Hard surfacing for a centrifuge conveyor
Patent number
4,328,925
Issue date
May 11, 1982
Pennwalt Corporation
Leonard Shapiro
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL