Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1982-09-16
1984-11-20
Holtje, Nelson C.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
Patent
active
D02764407
REFERENCES:
patent: D254076 (1980-01-01), Breitenkam
patent: 3309712 (1967-03-01), Cole
patent: 3887913 (1975-06-01), Smith
Canon "Natural Selection" Brochure-6/82-Cover-Graphics.
Canon "The New Standard of Performance" Brochure-7/81-p. 4, operating panel at top.
Electronic Copying Machine, Leodry 4511, Catalogue of Toshiba Leodry as of Feb., 1982.
Electronic Copying Machine, Leodry 8101.8102, Catalogue of Toshiba Leodry, printed Nov., 1980.
Canon NP6000 (Design only arranging each symbol) Catalogue of Canon Copying Machine, issued 1979.
The Report of the First Conference of "Symbols for use on Duplicators and Document Copying Machines" issued 7/26/78.
Ishikawa Yuji
Matsumoto Hiroshi
Matsuzaka Yohzoh
Nakamine Chosin
Yasutani Shigeki
Holtje Nelson C.
Tokyo Shibaura Denki Kabushiki Kaisha
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