CPC Subgroup
G02B 15/04 by changing a part
Full Title
Optical objectives with means for varying the magnification (anamorphotic objectives G02B13/08) > by changing, adding, or subtracting a part of the objective, e.g. convertible objective > by changing a part
2 direct subcodes
Child Classifications
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- G02B 15/06 by changing the front part
- G02B 15/08 by changing the rear part