Tetsuro Hara

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a pinch-sealed, gas-filled incandescent lamp
- Patent number 5,006,088
- Issue date Apr 9, 1991
- Koito Manufacturing Co., Ltd.
- Chikara Tokuhara
- H01 - BASIC ELECTRIC ELEMENTS