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Obsolete technology. Old electronic scientific personal calculator with LED display readout and power plug, displays the number pi. Popular with high school, college math and science students.
Keywords:
equipment
isolated
technology
no people
single object
close-up
keypad
finance and economy
cut out
business finance and industry
white background
push button
electrical equipment
electricity
background school
student high school
technology old
display old
high school student
isolated on white
the old
vintage old
college student white background
school technology
student white background
electronic technology
high technology
led background
power technology
technologies background
high school photos
number photos
obsolete photos
popular images
science photos
student photos
technology photos
the background image
electronic calculator
a number of photos
problems photos
problem solve
solve problems
solving problems
vintage photography
led display
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