Robert M. Butcher

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Fletcher, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite hypodermic syringe piston
- Patent number 6,004,300
- Issue date Dec 21, 1999
- Robert M Butcher
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mechanism for valve gated injection molding with resilient retainin...
- Patent number 4,698,013
- Issue date Oct 6, 1987
- Robert M. Butcher
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL