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Verifiers
Verification of the REGON number in Poland
Verifier allows you to validate entered REGON number
Long description
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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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Verifiers
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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Verifiers
Verifier numbers EAN-13 preview
Verifier numbers EAN-13
Calculator allows you to verify the number entered EAN-13.
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How do I calculate vacation? Calculator dimension leave in Poland
jak wyliczyć urlop wypoczynkowy?
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Calculator by entering the type of secondary education and the start and end dates of employment shall calculate the chargeable period of annual leave.
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Calculator allows you to verify the number entered EAN-13.
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Financial
Cost of online advertising
Calculator based on the entered values to calculate the total cost, the cost for 1,000 impressions or views of online advertising.
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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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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.