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Patents for R. M. Hamilton
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
188,451	Mar. 13, 1877	S. Wheeler	Improvement in indicators	low water alarms
250,467	Dec. 06, 1881	S. Wheeler	Portable writing-case
272,369	Feb. 13, 1883	S. Wheeler	Manufacture of wrapping-paper

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