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"Significant Historical Patents, " 1966 (Formerly housed in binder. Consists of patents of several famous inventions, such as Alexander Graham Bell's "Telegraphy" patents, as well as typed sheets describing inventions of 3M's Microfilm Products Lab)

Using These Materials

Info for Visitors

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Ordering Reproductions


RESTRICTIONS:

The collection is open for research.

USE & PERMISSIONS:

Copyright has not been transferred to the Regents of the University of Michigan. Permission to publish must be obtained from the copyright holder(s).