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2 inventors (with patents filed for the assignee):

Gregory Coventry (2 out of 2 patents)

Charles D Smith (2 out of 25 patents)

2 patents: Sort by Forward Citations

#1 in Harrison Township, MI

#3,187 in Michigan

#94,667 in US

Cpi Excavating, Inc.

Forward Citations = 0

2 inventors:

Gregory Coventry (2 out of 2 patents)

Charles D Smith (2 out of 25 patents)

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