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Records of the Applied Physics Laboratory, Johns Hopkins University

Dates: 1942-1956

Scope and Content Note

This collection of selected documents on the development of the VT-fuze came from the United States Patent Office and concerns post-World War II litigation (Butemen et al v. Varian) on alleged patent infringements during the development of the weapons.

Preferred Citation

This collection should be cited as Records of the Applied Physics Laboratory, Johns Hopkins University, Archives Branch, Naval History and Heritage Command, Washington, D.C.


2 cubic feet




Published: Tue Mar 09 08:51:55 EST 2021