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George Helps
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13,986. Helps, G. June 19, Incandescent gas lamps. -The annular burner h, j surrounds the gassupply pipe k, is provided with several mantles, and may rest on or be attached to a movable plug or socket l so as to facilitate removal of the mantles.
GB190613986D1906-06-191906-06-19Improvements in Gas Lamps & Burners.
ExpiredGB190613986A
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