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3 Black & Silver Microscopes
PAT # 3,451,739
Q: What model are these?
A: Parco Scientific #726552 PAT# 3,451,739 No Indication of manufacture year
Q: What is the manufacture year, and how old are these microscope? Are they 100 percent operational?
A: There are no markings indicating the manufacture year. The two numbers on the microscope are #726552 and PAT#3,451,739. There is also "JAPAN" stamped on the bottom of the microscope. They have a "vintage" appearance and are not power operated.
