Nippo Communication Industrial Co., Ltd.

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Patents Grantslast 30 patents

Information Patent Grant
Personal-servicing communication system
- Patent number 5,153,906
- Issue date Oct 6, 1992
- Nippo Communication Industrial Co., Ltd.
- Tadahiko Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Personal-servicing communication system
- Patent number 4,759,056
- Issue date Jul 19, 1988
- Nippo Communication Industrial Co., Ltd.
- Tadahiko Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system with voice announcement means
- Patent number 4,720,848
- Issue date Jan 19, 1988
- Nippo Communication Industrial Co.
- Tadahiko Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Personal-signaling communication system
- Patent number 4,680,785
- Issue date Jul 14, 1987
- Nippo Communication Industrial Co., Ltd.
- Tadahiko Akiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push button body for a push-button switch providing snap-action of...
- Patent number 3,932,722
- Issue date Jan 13, 1976
- Nippo Communication Industrial Co., Ltd.
- Akira Obata
- H01 - BASIC ELECTRIC ELEMENTS

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