Patents for E. C. Griffith


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Patents for E. C. Griffith
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
73,415	Jan. 14, 1868	H.O. Lothrop	Improvement in steam-engines cut-offs	steam engine governors
75,034	Mar. 03, 1868	H.O. Lothrop	Improvement in steam-engines cut-offs	steam engine governors