Patents for John Richardson


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Patents for John Richardson
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	399X	Sep. 13, 1802	J. Richardson	Evaporating furnace
	442X	Apr. 04, 1803	J. Richardson	Improvement in his evaporating furnace
	6,281	Apr. 10, 1849	W. Hunt	Safety pin