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Arthur J. Johnson

SCSpectrum Control: 1 patents #8 of 22Top 40%

Erie, PA: #632 of 1,097 inventorsTop 60%

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1 Patents All Time

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4247737	Electromagnetically shielded viewing window	Herbert G. Bostrom	1981-01-27