6 Utility Patents
#508 in Hiratsuka
#138,813 in Japan
#688,444 in the World
Forward Citations = 34
Company Filing History:
Oiles Industry Co., Ltd.

Japanese National Railways
4. 1 out of 1
Yachiyo Engineering Co., Ltd.
5. 1 out of 1
Oiles Co., Ltd.
where one patent can have more than one assignee
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