Prosečne GPS koordinate za poštanski broj 77640: 48.927, 3.099

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Spisak gradova:
>> Jouarre 77640, Île-de-France, Seine-et-Marne, Arrondissement de Meaux, GPS koordinate: 48.9266,3.1317
>> Signy-Signets 77640, Île-de-France, Seine-et-Marne, Arrondissement de Meaux, GPS koordinate: 48.9277,3.0665