Richard T. Metcalfe

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Southbridge, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Semi-rimless safety frame
- Patent number D348893
- Issue date Jul 19, 1994
- Cabot Safety Corporation
- Richard T. Metcalfe
- D16 - Photography and optical equipment
Information Patent Grant
Faceshield
- Patent number D320478
- Issue date Oct 1, 1991
- Cabot Safety Corporation
- Richard T. Metcalfe
- D29 - Equipment for safety, protection, and rescue