Verifiers

Verification of the REGON number in Poland

Verifier allows you to validate entered REGON number

Long description

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Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?

Calculator allows you to verify the ISBN number entered.

56094

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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Generator ideal body weight according to Broca

Based on the given height and gender calculates for you the ideal body weight according to Broca.

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Calculator floor panels

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Insulation of wall

Jak policzyć izolację ścian?

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.

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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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Limit calculator, which entitles them to exemption from VAT in Poland

Calculator allows you to see what gives you the right amount of turnover for exemption from VAT if you started a business during the year.