Assignee

OKADA SEIMEN YUGEN KAISHA

1 granted patent·52 citations·filing 1976–1976

Technology mixC05F1 Y02P1 Y02W1

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1 record

0190US4108625AMethod of, and apparatus for producing fertilizer by utilizing earthwormsOKADA SEIMEN YUGEN KAISHA·Filed 1976·Granted Aug 22, 1978·52 cites·9 claims

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