エレベーターの通話方法 - Japan Elevator Service Holdings Co., Ltd.

Title:

エレベーターの通話方法

Document Type and Number:

Japanese Patent JP7406016

Kind Code:

B2

Inventors:

Katsushi Ishida
Shinobu Sekine
Toru Shibata

Application Number:

JP2023004573A

Publication Date:

December 26, 2023

Filing Date:

January 16, 2023

Export Citation:

Assignee:

Japan Elevator Service Holdings Co., Ltd.

International Classes:

B66B5/00; B66B3/00; H04M9/00

Domestic Patent References:

Foreign References:

US5345046
CN101160254A

Attorney, Agent or Firm:

Akinori Sakai

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