G
PHYSICS
G
PHYSICS
G02
OPTICS
G02
OPTICS
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
21/00
Microscopes
21/00
Microscopes
G02B21/0004
specially adapted for specific applications
G02B21/0004
specially adapted for specific applications
G02B21/0088
Inverse microscopes
G02B21/0088
Inverse microscopes