Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Patent
1987-06-18
1989-07-11
Dunkins, Bruce W.
Photography and optical equipment
Optical article not elsewhere specified
Lens or objective
D16102, D16116
Patent
active
D03021688
REFERENCES:
patent: D47916 (1915-10-01), Fenno
patent: D280830 (1985-10-01), Levoy
Optical Journal & Review, 10-15-1968, p. 16, "Top-Not" Frames.
Optician, 4-29-1988, p. 29, lower frame on right of page, by Canada Optical.
Dunkins Bruce W.
Heflin Clare E.
Tong Nan Optical Enterprise Co., Ltd.
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