IP Library › Granted Patent US 4,840,258
Granted Patent Utility
US 4,840,258 · App. 07/245,393

Brief case with a portable wireless telephone

Inventors: Arifumi Tomikawa, Nihiko Yasukawa
Patented Case View Patent ↗
Granted: Jun 20, 1989 Filed: Jul 15, 1988
Inventors
Arifumi Tomikawa
Nihiko Yasukawa
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.

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Quick Facts
Patent No.
US 4,840,258
App. No.
07/245,393
Filed
1988-07-15
Granted
1989-06-20
Kind
A