Inventor · disambiguated record

Isao Sawayama

Also filed as: SAWAYAMA ISAO

1 granted patent·5 citations·filing 1977–1977

26Inventor score

Technology areasE21C

Files withTAIHEIYO ENG1

Top patents by PatentIndex Score

1 record

0138US4099781AApparatus for automatically shifting the conveyor at the pit face in the coal mineTAIHEIYO ENG·Filed 1977·Granted Jul 11, 1978·5 cites·3 claims

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Isao Sawayama — Patent Inventor | PatentIndex