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Old Calculator Web Museum Documentation Archive
Monroe 920 Service Manual

This original Monroe service document was donated to the Old Calculator Museum in July of 2015 by Mr. Charles Smith, who was a Monroe Service Engineer for many years. Mr. Smith kindly donated this document, along with a Monroe 920 Calculator in beautiful condition, along with some other documentation relating to Monroe's 920, 925, 950, and 990 calculators. The museum wishes to express its sincere thanks to Charles for his gracious donation.
The scan of this document was kindly performed by Mr. Dave Beck. Dave also provided a generous monetary contribution to the museum along with scanning of the Monroe documentation. Sincere thanks to Dave for his contributions to the museum.

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Monroe 920 Service Manual

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