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Extendable mast
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Patent number 5,085,018
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Issue date Feb 4, 1992
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Japan Aircraft Mfg., Co., Ltd.
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Takayuki Kitamura
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Spring apparatus
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Patent number 4,856,765
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Issue date Aug 15, 1989
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Kohno; Masahiro
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Masahiro Kohno
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B66 - HOISTING LIFTING HAULING
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Extendible structure
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Patent number 4,662,130
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Issue date May 5, 1987
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Miura; Koryo
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Koryo Miura
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B64 - AIRCRAFT AVIATION COSMONAUTICS