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US3075597A
|
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Torsion balance having mechanically amplified indicator
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US3075596A
|
|
Torsion balance
|
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US2993547A
|
|
Torsion balance
|
|
US2892345A
|
|
Inner face hardness tester
|
|
US2892344A
|
|
Convertible hardness testers
|
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US2938377A
|
|
Hardness testers
|
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US2690906A
|
|
Analytical balance
|
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US2690948A
|
|
Balance case
|
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US2619200A
|
|
Dash-pot
|
|
US2102938A
|
|
Keyboard balance
|
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US2040639A
|
|
Balance or weighing scale
|
|
US2004745A
|
|
Balance or weighing scale
|
|
US1986995A
|
|
Balance or weighing scale
|
|
US1759139A
|
|
Balance
|
|
US1599495A
|
|
Balance
|
|
US1599529A
|
|
Weighing scale or the like
|
|
GB240354A
|
|
Improvements in or relating to scales and balances and the like
|
|
US1591802A
|
|
Balance or weighing scale
|
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US1652631A
|
|
Adjustable frame or truss for instruments of precision
|
|
US1551726A
|
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Laboratory balance
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