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Patents for Maryland Trust Co.
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,463,305	Jul. 31, 1923	S.D. Black, A.G. Decker	Pumping apparatus
1,492,095	Apr. 29, 1924	S.D. Black, A.G. Decker	Electrically-driven tool	handheld power tools

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