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Cantilever for pickup cartridge
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Patent number 4,433,408
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Issue date Feb 21, 1984
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Matsushita Electric Industrial Co., Ltd.
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Koichi Azuma
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G11 - INFORMATION STORAGE
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Boron cantilever pipe
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Patent number 4,382,454
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Issue date May 10, 1983
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Matsushita Electric Industrial Co., Ltd.
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Masaki Aoki
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Method of making boron cantilever
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Patent number 4,279,691
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Issue date Jul 21, 1981
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Matsushita Electric Industrial Co.
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Masaki Aoki
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Surface acoustic wave filter
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Patent number 4,203,082
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Issue date May 13, 1980
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Matsushita Electric Industrial Co., Ltd.
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Masahide Tsukamoto
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H03 - BASIC ELECTRONIC CIRCUITRY
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