Inventor
ZIRTZLAFF KEITH D
US5 patents
Patents
5 patentsUS6523382B1Feb 25, 2003
Free wheeling lock assembly
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US6109081AAug 29, 2000
Key and cylinder lock system
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US6058751AMay 9, 2000
Free-wheeling lock
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US7047778B2May 23, 2006
Vehicular lock apparatus and method
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US6101855AAug 15, 2000
Key and cylinder lock system
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