Zenon A. Zielinski

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Montreal, CA

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Patents Grantslast 30 patents

Information Patent Grant
Precast concrete stairway module
- Patent number 4,248,020
- Issue date Feb 3, 1981
- Canadian Patents & Development Ltd.
- Zenon A. Zielinski
- E04 - BUILDING
Information Patent Grant
Form pan structure
- Patent number 4,243,200
- Issue date Jan 6, 1981
- Beer-Zaz Building Systems, Inc.
- Issie M. Beer
- E04 - BUILDING