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switchboard
vintage kitchen
the boiler room
switchboard operator
kinetoscope
telephone operator
laboratories
computer room
substation
engine room
old calculating machine
westinghouse
cyclotrons
substations
radiopharmaceutical
chemical laboratory
transmitter
cinematronics
autoclaves
the server room
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switchboards
switchboard
vintage kitchen
control panel
laboratories
engine room
switchboard operator
chemical laboratory
switchgear
radiopharmaceutical
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electropneumatic
switchboards
switchboard
old calculating machine
switchboard operator
projectionists
photoelectric
engine room
telephone operator
cinematronics
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switchgear
control panel
vintage kitchen
switchboard
switchboards
switchboard operator
old calculating machine
engine room
controls
lead accumulator
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bannack assay office
assay office in bannack
kinematograph
examination room
laboratory
chemical laboratory
radiotelegraph
laboratorium
laboratories
galvanometer
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washhouse
launderette
soda fountain
laundries
switchboards
washing machines
laundress
laundry shop
launder
vintage kitchen
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crittall
laboratories
chemical laboratory
vintage kitchen
mailroom
storerooms
salon
mailrooms
switchboards
storeroom
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switchboards
tile kitchen
switchboard
lecture room
lecture hall
control desk
schoolrooms
soundboards
engine room
radioteletype
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computer room
switchboards
radiopharmaceutical
chemical laboratory
laboratories
mailrooms
microfilms
switchboard
mailroom
microcomputers
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computer room
laboratories
collaboratory
spacelab
photolithography
radioteletype
chemical laboratory
radiopharmaceutical
switchboards
photolithographic
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chemical laboratory
laboratory information
laboratory
laboratories
laboratorium
laboratorio
radiopharmaceutical
microfilming
laboratoires
kitchen interior
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examination room
treatment room
kinetoscope
kinescope
guardroom
consulting room
rietveld
administation
vandercook
dumbwaiter
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vintage kitchen
laboratorium
chemical laboratory
kitchen interior
bannack assay office
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sterilization equipment
kitchen
victorian kitchen
laboratories
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photolithography
photolithographic
microfilming
radiotelegraph
radioteletype
telephone operator
projectionists
switchboard
microfilmed
gravimeter
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linotype
tailor seat
sewing room
kinematograph
bannack assay office
typesetters
shoemaking
galvanometer
photolithographic
crittall
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switchboards
switchboard
control panel
switchgear
old calculating machine
oscilloscopes
eniac
heathkit
subcabinet
switchboard operator
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computer room
control desk
transmitter
usnr
control panel
engine room
radiopharmaceutical
radar equipment
switchboard
switchboards
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switchboards
computer room
switchboard
electronic records
microcomputers
heathkit
the server room
radioteletype
computer system
control desk
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computer room
crittall
consulting room
microfilming
switchboards
microfilm
microfilms
bannack assay office
radiotelevision
vintage kitchen
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switchboards
eniac
switchgear
switchboard
alphaserver
data center
the server room
duplicators
subcabinet
supercomputing
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mezzanine
ziegfeld
circular staircase
ziegfield
entrance hall
stairwell
the interior of the cockpit
the interior of the
aerial passenger line
factory hall