Ventilation valve device - Onda Manufacturing Co., Ltd.

Title:

Ventilation valve device

Document Type and Number:

Japanese Patent JP6292548

Kind Code:

B2

Inventors:

Nobuhiko Hayashi
Toru Kamiya

Application Number:

JP2017236554A

Publication Date:

March 14, 2018

Filing Date:

December 11, 2017

Export Citation:

Assignee:

Onda Manufacturing Co., Ltd.

International Classes:

F16K24/06

Domestic Patent References:

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