Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1984-03-30
1987-02-17
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
355 3DD, 222DIG1, D 9373
Patent
active
D02883341
REFERENCES:
patent: D26482 (1897-01-01), Lemmermann
patent: D175383 (1955-08-01), Bamberger
patent: D193739 (1962-10-01), Garrison
patent: D213670 (1969-04-01), Waddington
patent: D257951 (1981-01-01), Reichl
patent: D266095 (1982-09-01), Hara
patent: D267097 (1982-11-01), Tacklind
patent: D267858 (1983-02-01), Spates
patent: D270518 (1983-09-01), Duering
IBM Tech. Disclosure Bulletin-vol. 17, #4-9/74-p. 1094-Toner Dispenser.
Holtje Nelson C.
TBS Simons, Inc.
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