Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-02-17
1978-05-02
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02478153
REFERENCES:
patent: D230196 (1974-01-01), Fitzgerald et al.
patent: D240664 (1976-07-01), Spence-Bate
patent: 3840300 (1974-10-01), Vane
patent: 3867025 (1975-02-01), Raterman et al.
patent: 3972610 (1976-08-01), Gross
patent: 4029412 (1977-06-01), Spence-Bate
Burke Wallace R.
Fidelman Morris
Kemper Catherine
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