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Patents Grantslast 30 patents

Information Patent Grant
Comb filter
- Patent number 4,492,928
- Issue date Jan 8, 1985
- Matsushita Electric Industrial Co., Ltd.
- Daishiro Hayakawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Piezoelectric relay with oppositely bending bimorphs
- Patent number 4,403,166
- Issue date Sep 6, 1983
- Matsushita Electric Industrial Co., Ltd.
- Fumio Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for detecting the breakage of an acoustically conductive...
- Patent number 4,112,420
- Issue date Sep 5, 1978
- Matsushita Electric Industrial Company Limited
- Hideo Mifune
- G08 - SIGNALLING