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CALHOUN JOHN

US3 patents

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USD689040SSep 3, 2013

Speaker enclosure

CALHOUN JOHN7 citations82

US5329797AJul 19, 1994

Tube-resizing tool

CALHOUN JOHN12 citations71

US8622724B2Jan 7, 2014

Scroll pump with isolation barrier

CALHOUN JOHN0 citations37