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
G02B21/33
Immersion oils; , or microscope systems or objectives for use with immersion fluids
G02B21/33
Immersion oils; , or microscope systems or objectives for use with immersion fluids