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vintage blueprint background . original blueprint of an axle pulley from 1929, made more generic in Photoshop with some labels/measurements removed.
Grungy old technical blueprint illustration on faded paper background
Seismograph side view, 3D rendering isolated on white background
Black sewing machine stitches on white background. Various threaded stitches isolated on white.
cardiogram on old paper as background macro photo
Slide Rule on a mechanical drawing of a gear box.
Audio Control Panel LCD Display with Dual VU Audiometers.
An old, stained and damaged British rent and rates record card dated 1981. All identifying details have been removed.
vintage blueprint background of a circular equipment schematic.altered to make more generic.
Measuring, transparent, plastic beaker with markings of various sizes for mixing paint
polysomnography (PSG) sleep study multi parametric test diagnostic tool
printout on a contraction monitor in a delivery room
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Vintage hand drawn architectural plan circa 1982.
Tachograph plate for recording the time and mileage of a truck. Route, driver and vehicle identification data. Light background.
Seismograph printing seismic activity records of a severe earthquake.
a vintage wiring blueprint
3D illustration of public restroom
printout of data from a seismic test for an oil well
Two old inoculation certificates from the 1970s.
Chart indicating the strength of a nuclear bomb blast and its radiation pattern
pencil drawing of my old drawing  plans Of mechanical equipment. These are my school drawings that I drew in drawing lessons
Old radio circuit printed on vintage paper electricity diagram as background for education, electricity industries. Electric radio scheme from USSR
1959 report card
Graph paper with one millimeter grid, with hand drawn graph on it
 a beam chart from an antique machinery data book showing light beam performance dates 1903
3D illustration of industrial building
background with hand written electrotechnics formulas with diagrams and plans of basic electrotechnics setups and sketches on white paper background,
Skan of western blotting film with an image of four membranes subjected to antibodies recognizing different protein species visible as black stops or blots
old mechanical machine with punched tape
Free Images: "bestof:Beckman patent 1071952 Sheet 1 crop.tif en Patent 1071952 sheet 1 showing diagrams for the Recording apparatus for recording gas concentrations in the"
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portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
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