Assignee

DUVAL HENRY H

2 granted patents·54 citations·filing 1981–1983

Technology mixE01B1 E01C1

Top patents by PatentIndex Score

2 records

0165US4511283AMethod and apparatus for sealing of pavement seamsDUVAL HENRY H·Filed 1983·Granted Apr 16, 1985·27 cites·7 claims
0265US4451180AMethod for restructuring railway roadbedsDUVAL HENRY H·Filed 1981·Granted May 29, 1984·27 cites·1 claims

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