Carl S. Martin

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East Earl, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Concrete dispensing apparatus for pre-cast concrete forms
- Patent number 7,980,843
- Issue date Jul 19, 2011
- SWA Holding Company, Inc.
- Melvin M. Zimmerman
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Segmented auger for a concrete dispensing apparatus
- Patent number 7,736,048
- Issue date Jun 15, 2010
- SWA Holding Company, Inc.
- Melvin M. Zimmerman
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Concrete dispensing apparatus for pre-cast concrete forms
- Publication number 20080048351
- Publication date Feb 28, 2008
- SWA Holding Company, Inc.
- Melvin M. Zimmerman
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Segmented auger for a concrete dispensing apparatus
- Publication number 20080049543
- Publication date Feb 28, 2008
- SWA Holding Company, Inc.
- Melvin M. Zimmerman
- B28 - WORKING CEMENT, CLAY, OR STONE