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US2914952A
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Mechanism for coarse and fine adjustment
|
|
GB663252A
|
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Improved device for adjusting the tension of a spring
|
|
DE839312C
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|
SLR camera
|
|
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Microscope
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|
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|
Illuminator attachment for microscopes
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US1935430A
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Adjusting device for photographic objectives
|
|
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Ball-bearing for scientific instruments
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|
GB336162A
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Improvements in or relating to episcopic projection apparatus
|
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GB336499A
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Improvements in or relating to episcopic projection apparatus
|
|
GB333089A
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Improvements in or relating to optical projection apparatus
|
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GB318441A
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Improvements in rotatable stages for microscopes
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DE483847C
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Device for determining the quantity ratio of batch parts
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Improvements in or relating to polarimeters
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Mirror condenser for dark field lighting
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DE384071C
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Roll film camera
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Stereoscopic double microscope
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GB202023A
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Improvements in or relating to microscopes
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|
DE358416C
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|
Electric arc lamp
|
|
DE356008C
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Lighting device for microscopes
|
|
DE356841C
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|
Basic unocular rangefinder
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