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NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered
Tax identification number is a code used to identify taxpayers in Poland, which consists of 10 digits.
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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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Calculator ARP (annual percentage rate)
calculator to input the loan amount, the amount of commission (percentage) and the repayment time is calculated the annual interest rate.
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Calculator VAT refund for building materials
The calculator calculates the amount of VAT that can be refunded in respect of incurred expenses associated with the purchase of construction materials.
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Core area
The calculator calculates the optimal surface for the heat sink temperature indicator.
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Life
Your weight on other planets
Your weight on other planets
Calculator us by the specified weight on Earth is given if you would weigh on other planets and the Moon and Pluto.