Inventor · disambiguated record

Samvel S. Grigorian

Also filed as: GRIGORIAN SAMVEL S

1 granted patent·125 citations·filing 1976–1976

54Inventor score

Technology areasE21B

Files withGRIGORIAN SAMVEL S1

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1 record

0184US4304428ATapered screw joint and device for emergency recovery of boring tool from borehole with the use of said jointGRIGORIAN SAMVEL S·Filed 1976·Granted Dec 8, 1981·125 cites·5 claims

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Samvel S. Grigorian — Patent Inventor | PatentIndex