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Leeds & Northrup records
The Leeds & Northrup Company traces its origins to Morris E. Leeds & Company, established by Morris E. Leeds (1869-1952) in 1899 to develop and manufacture precision instruments. Their records consists of minutes from the Development and Executive Committes and the Cooperative Association.
Trundle Engineering Company album
The Trundle Engineering Company was an industrial engineering management consulting company based in Cleveland, Ohio. Clients would hire Trundle Engineering Company to perform studies on their organization or operating methods. One aspect of the business was the design and manufacture of custom machinery for increased efficiency. This album is a salesman sample photograph album providing an overview of inventions and technology developed by the Trundle Engineering Company. Machinery represented here includes spiral meat-cutting machine, matchbook cover book-cutting machine, traffic signal control boxes, spinning machine for making artificial silk, ice cream freezing machinery, remote control spotlight, and a golf ball center compression test machine.