John S. Hall

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Ottawa, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Brick tie
- Patent number 5,636,486
- Issue date Jun 10, 1997
- John S. Hall
- E04 - BUILDING
Information Patent Grant
Reinforcing strips for pre-cast construction elements
- Patent number 4,387,544
- Issue date Jun 14, 1983
- Herbert K. Schilger
- E04 - BUILDING