1981-05-18
1983-08-23
Corbin, John K.
350450, 350457, 350480, 350537, G02B 1112, G02B 2300
Patent
active
044000650
ABSTRACT:
A multi-purpose telescope objective having a Petzval type lens configuration and including an iris diaphragm.
REFERENCES:
patent: 2500046 (1950-03-01), Schade
Corbin John K.
Gass Rebecca D.
Keegan William P.
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