Robert D. Welch

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Mansfield, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for detecting a loss of differential pressure...
- Patent number 5,765,378
- Issue date Jun 16, 1998
- Helix Technology Corporation
- Martin L. Stein
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...