Forward Citations = 57

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2 inventors (with patents filed for the assignee):

Paul A Witte (1 out of 15 patents)

Thomas Johnson (1 out of 9 patents)

1 patent: Sort by Forward Citations

#442 in Philadelphia, PA

#4,884 in Pennsylvania

#133,941 in US

M. Black Manufacturing Company

Forward Citations = 57

2 inventors:

Paul A Witte (1 out of 15 patents)

Thomas Johnson (1 out of 9 patents)

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