Shift control method in ground construction machine and ground construction machine

Title:

Shift control method in ground construction machine and ground construction machine

Document Type and Number:

Japanese Patent JP6310239

Kind Code:

B2

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Inventors:

Takaoka Chimune
Shinji Masaki

Application Number:

JP2013240719A

Publication Date:

April 11, 2018

Filing Date:

November 21, 2013

Export Citation:

Assignee:

WBM Co., Ltd.

International Classes:

E21B3/02; E02D7/22

Domestic Patent References:

Foreign References:

US5255590

Attorney, Agent or Firm:

Motonari Tomisaki
Sadao Enjoji
Machida Mitsunobu

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