Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1985-10-22
1988-10-18
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02981378
REFERENCES:
patent: 3629662 (1971-12-01), Cattey et al.
patent: 4307264 (1981-12-01), Hess
patent: 4520423 (1985-05-01), Sutherland
Campbell Scientific, Inc., brochure "21X Micrologger", undated.
Campbell Scientific, Inc., brochure "CR7 Measurement & Control System", dated May, 1983.
Science Electronics, Inc., brochure "Grant", dated Jun. 1983.
Campbell Scientific, Inc., brochure "C20 Cassette Interface", dated May, 1983.
Campbell Scientific, Inc., brochure "CR21 Casette Tape Format Options", dated Sep., 1983.
Campbell Scientific, Inc., brochure "CR7 Technical Addenda", dated Aug., 1983.
Datapaq Limited
Lucas Susan J.
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