Richard L. Stone

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Los Altos Hills, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Prefabricated double-walled metal chimney
- Patent number 4,462,618
- Issue date Jul 31, 1984
- Wallace-Murray Corporation
- Richard L. Stone
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Expansion joint for prefabricated double-walled metal chimney
- Patent number 4,029,343
- Issue date Jun 14, 1977
- Wallace-Murray Corporation
- Richard L. Stone
- E04 - BUILDING
Information Patent Grant
Connection joint for prefabricated metal chimney
- Patent number 4,029,344
- Issue date Jun 14, 1977
- Wallace-Murray Corporation
- Richard L. Stone
- E04 - BUILDING