A person keeping a livery stable, or boarding stable for animals, or a garage or storage place for automobiles or other vehicles, or who boards, pastures, feeds or trains animals for hire, has a lien upon such animals or vehicles for the sum due him for the care, boarding, pasturage, feeding, or training of such animals, or the care, keeping or storage of such vehicles, even though such animals or vehicles are permitted to be taken out of the possession of the one claiming such lien, if the contract between the owner and the person claiming such lien for keeping, boarding, pasturage, feeding, training or storage, has not been terminated at the time such animal or vehicle is taken out of such possession: Provided, however, That any purchaser of such animal or vehicle, while out of the possession of the person claiming such lien, shall take such property free of such lien, unless he had actual notice at the time of such purchase that such animal or vehicle was being kept, stored, boarded, pastured, fed or trained by some person other than the owner thereof: Provided further, That the lien hereinbefore provided for in this section shall not be valid as against any person other than the owner of such animal or vehicle, whether such other person have notice of the claim of lien or not, for any charges incurred more than three months prior to the time when such person other than the owner acquired his interest in the animal or chattel, unless the animal or chattel was, at the time of the acquisition of such interest, actually in the possession of the person claiming such lien.