Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1975-07-02
1977-06-14
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1606
Patent
active
D02446880
REFERENCES:
Optician, Sept. 1, 1972, p. 23, "Amor" frames.
Optician, Oct. 27, 1972, p. 23, frames top left.
Optician, Apr. 6, 1973, p. 17, "Joss" frames.
Burke Wallace R.
Burns Robert E.
Kemper Catherine
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