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Portable data entry device
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Patent number 4,125,871
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Issue date Nov 14, 1978
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Arthur D. Little, Inc.
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Peter G. Martin
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G06 - COMPUTING CALCULATING COUNTING
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Portable data entry device
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Patent number 4,090,247
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Issue date May 16, 1978
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Arthur D. Little, Inc.
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Peter G. Martin
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G06 - COMPUTING CALCULATING COUNTING
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Web speed control system
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Patent number 4,051,415
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Issue date Sep 27, 1977
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Braemar Computer Devices, Inc.
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Peter G. Martin
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G11 - INFORMATION STORAGE