Daniel P. Masson

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Burr Ridge, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Reusable writing board with locking function
- Patent number 5,938,449
- Issue date Aug 17, 1999
- Colonial Converting Corporation
- Daniel P. Masson
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Reusable writing board having single polyester overlay sheet
- Patent number 5,791,910
- Issue date Aug 11, 1998
- Colonial Converting Corporation
- Daniel P. Masson
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES