Assignee

FRANCIS ROBERT A

3 granted patents·103 citations·filing 1975–1991

Technology mixF16L3 Y10T1

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3 records

0177US4304426APipe fittingFRANCIS ROBERT A·Filed 1980·Granted Dec 8, 1981·41 cites·11 claims
0274US4158461APipe tapping bandsFRANCIS ROBERT A·Filed 1975·Granted Jun 19, 1979·35 cites·1 claims
0368US5170813ATapping bandsFRANCIS ROBERT A·Filed 1991·Granted Dec 15, 1992·27 cites·14 claims

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