Magnifying device

Details Magnifying device Magnifying device

1989-11-13

1992-08-25

Burke, Wallace R.

Photography and optical equipment

Optical article not elsewhere specified

Telescope

Patent

active

D03289095

REFERENCES:
patent: D138022 (1944-06-01), Stoltz
patent: 2533628 (1950-12-01), Rosenberg
patent: 2716918 (1955-09-01), Miles
patent: 3748765 (1973-07-01), Bass et al.
patent: 3804504 (1974-04-01), Scott
patent: 4030814 (1977-06-01), Clifton et al.
patent: 4076391 (1978-02-01), Teiser et al.
patent: 4099851 (1978-07-01), Rethore
patent: 4549785 (1985-10-01), Vitrac

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