Illuminometer

Photography and optical equipment – Photographic accessory – Photometer – color – or exposure meter

Patent

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1605

Patent

active

D04325559

REFERENCES:
patent: D258447 (1981-03-01), Singer
patent: D259198 (1981-05-01), Chapman
patent: 4364662 (1982-12-01), Yuasa et al.
patent: 4636052 (1987-01-01), Bowsher
Minolta Catalog, "ISO 9001," Sep. 1, 1998.
Kabushiki Kaisha Topcon, "IM-1" and "IM-2D," found at Internet web site http://www.topcon.co.jp/sangyou10.html on Oct. 19, 1998.
Tokyo Koden Kabushiki Kaisha, "ANA-F9," found at Internet web site http://www.edomae.tokyoinfo.or.jp/ TKK/1.sub.-- 04.html on Oct. 19, 1998.
Yokogawa M & C Kabushsiki Kaisha, "520 05/06," found at Internet web site http://www.yokogawa.co.jp/MCC/env/520.sub.-- 05.html on Oct. 16, 1998.

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