Forward Citations = 14

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2 inventors (with patents filed for the assignee):

John P Stein (1 out of 14 patents)

Philip M Whitney (1 out of 1 patent)

1 patent: Sort by Forward Citations

#258 in Grand Rapids, MI

#4,521 in Michigan

#133,929 in US

Grand Northern Products, Ltd.

Forward Citations = 14

2 inventors:

John P Stein (1 out of 14 patents)

Philip M Whitney (1 out of 1 patent)

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