duplex slide rule

Isaac Kremer/ November 23, 2025/ / 0 comments

A slide rule of the stick type having an interior slide of the same thickness as the rule and its two faces flush with those of the exterior portions. Both rule and slide are graduated on both faces. (Bridge, 2019)

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IsaacKremer.com is the personal website of Isaac Kremer, MSARP, a nationally recognized leader in the Main Street Approach to commercial district revitalization with over 25 years of experience. Kremer, New Jersey's first certified Main Street America Revitalization Professional (MSARP), has served as founding executive director for organizations like Experience Princeton and the Metuchen Downtown Alliance, which won a Great American Main Street Award under his leadership. He recently became director of the Royal Oak Downtown Development Authority in Michigan.

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