Posso, Patrick. "Minicassette for Recording Tape." U.S. Patent number 3934842. Washington DC: United States Patent and Trademark Office, 1973. http://www.uspto.gov/patft/index.html (25 March 2008).
Posso, Patrick. "Minicassette for Recording Tape." U.S. Patent number 3934842. Washington DC: United States Patent and Trademark Office, 1973. http://www.uspto.gov/patft/index.html (25 March 2008).
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identifier
2000049576
created
2008-03-25T11:27:50
license
title
Posso, Patrick. "Minicassette ...... ft/index.html (25 March 2008).
shortTitle
Posso, Minicassette for Recording Tape (1973)