Henry J. Kazienko

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Littleton, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a coupling for rigid pressure pipe
- Patent number 4,329,193
- Issue date May 11, 1982
- Manville Service Corporation
- John L. Sznopek
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mandrel for making a coupling for rigid pressure pipe
- Patent number 4,319,950
- Issue date Mar 16, 1982
- Manville Service Corporation
- John L. Sznopek
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL