Patents for Henry St. Lawrence


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Patents for Henry St. Lawrence
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
333,486	Dec. 29, 1885	H. St. Lawrence	Forging Machine	forging presses
335,394	Feb. 02, 1886	H. St. Lawrence	Power Hammer	power hammers
379,340	Mar. 13, 1888	H. St. Lawrence	Power-hammer	drop hammers