Patent classifications
G
PHYSICS
Load children
G02
OPTICS
Load children
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
Load children
15/00
Optical objectives with means for varying the magnification
Load children Filter patents View analytics View as hierarchy
G02B15/02
by changing, adding, or subtracting a part of the objective, e.g. convertible objective
Load children Filter patents View analytics View as hierarchy
G02B15/10
by adding a part, e.g. close-up attachment
Load children Filter patents View analytics View as hierarchy
G02B15/12
by adding telescopic attachments
Filter patents View analytics View as hierarchy