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Non-Commercial Use
2
Category
Electricity Supply
1
Orthopaedics
1
Collection
Sir Henry Wellcome's Museum Collection
1
Object type
trusses
1
wattmeter
1
Material
steel (spring)
2
brass (copper, zinc alloy)
1
coated wire
1
copper (alloy)
1
enamelled metal (dial)
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frame
1
gutta-percha
1
gutta-percha?
1
textile covered wire
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wood (unidentified)
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Siemen's wattmeter No 1410 in case
Single truss
1890-1930
