Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1978-01-30
1980-02-19
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D16 04, D1601, D1602
Patent
active
D02542595
REFERENCES:
patent: D103352 (1937-02-01), Tichenor
patent: D160589 (1950-10-01), Gilbert
patent: D162009 (1951-02-01), Coffey, Sr.
patent: D197676 (1964-03-01), Olsen
patent: D201528 (1965-06-01), Nemeth
patent: D219688 (1971-01-01), Skinner et al.
Miller Paul D.
Penney Richard
Burke Wallace R.
GAF Corporation
Kemper Catherine
Mohr J. Gary
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