Jack W. Harkness

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Alto, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Foam injection nozzle
- Patent number 4,135,882
- Issue date Jan 23, 1979
- Harkness; Jack W.
- Jack W. Harkness
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL