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Verifier ISMN numbers
Calculator allows you to verify the number entered ISMN (International Standard Serial Number Printing music).
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Verification ISBN preview
Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?
Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
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Verification of the social security number in Poland
It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
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Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
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Enthalpy calculator is used to calculate the heat transfer during the process kwazistatycznego occurring in a closed thermodynamic system under constant pressure (isobaric process).
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Rainwater tank
The calculator calculates the amount of collected rainwater from the roof of the given dimensions.
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Calculator floor panels
Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.
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Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.