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US2736097A
(en)
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coleman |
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US3205584A
(en)
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Magnifying means for flexible scales
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BE452788A
(OSRAM)
|
|
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JPH01500690A
(ja)
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検眼レンズの屈折特性測定装置
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CN217484018U
(zh)
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一种杨氏模量实验仪
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US4410267A
(en)
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Hand-held lens meter
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US1567224A
(en)
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Weighing implement the deflection of which is made visible or enlarged by optical means
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CH246292A
(fr)
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Balance à lecture optique.
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US1671709A
(en)
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|
Measuring instrument
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CH375909A
(fr)
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Dispositif de détermination de la position d'un organe mobile de machine
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Graton et al.
|
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A Precision, All-Purpose Microcamera |
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US2583690A
(en)
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Variable reflex optical projection system for weighing scales
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US3497381A
(en)
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Scale with indicators of the price and the weight of the commodity
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BE389592A
(OSRAM)
|
|
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US3249164A
(en)
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Weighing scale with releasable torsion spring for zero and full capacity adjustments
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US2137776A
(en)
|
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Hand level
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BE402852A
(OSRAM)
|
|
|
|
Curley
|
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Letters to the editor [description of a reflecting sector] |
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GB129953A
(en)
|
|
Weight Indicator for Weighing Scales.
|
|
Powell Jr
|
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Photoelectric Measurements of the Absorption of Fused and Crystalline Quartz Between 1633 and 1463A |
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US3552844A
(en)
|
|
Optical weighing scale
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BE422923A
(OSRAM)
|
|
|
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RU2006792C1
(ru)
|
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Устройство для измерения радиусов кривизны поверхности детали
|
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BE459088A
(OSRAM)
|
|
|
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SU1150509A1
(ru)
|
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Устройство дл измерени задней вершинной рефракции очковых линз
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