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Old typewriter patent stamp. OCTOBER 1894
Woman pressing an old button with \
Ancient speed controller of a steam turbine
An old dusty electrical cabinet
an old golden analog alarm clock with mechanical movement isolated on colored background
Close up image of an early oscillating motor, circa mid 1800s. Isolated on white with clipping path. High quality photo
Silver Bar
old tram steering wheel
Ancient speed controller of a steam turbine system
communication
An old music-roll, used to play a piano or organ automaticly
antique electric heater
Variable rate utility meters or multiple tariff meters allow utilities to charge customers different rates tariffs at different times of day
Steam train pressure gauge
close up of a stirling engine construction with white table and white background
Gas cylinder valve with arrows and inscriptions Open and Close.
Old-fashioned apartment building  intercom. Push buttons. Gijón, Asturias, Spain.
Vintage electric meter hanging on the wall. High quality photo
Pressure gauge
Old hydraulic pressure gauge. Hydraulic manometer
electric power systems
closeup of a stirling engine construction with wooden table and black background
Old Fire Alarm Bell
Soviet radio from the Second World War. Headphones.
Kleinmachnow, Germany - May 6, 2018: Close-up of the interior of a historic German streetcar from 1929.
Guayaquil, Guayas Province, Ecuador - June 18, 2022: Architectural details of clock machinery inside of \
Free Images: "bestof:Detail showing liquid transmitter in Bell's U.S. Patent No. 161739 obtained in April, 1875.jpg en The U S Patent Office granted Bell a patent in April 1875 for"
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