comment
  This property specifies the LOWER BOUND of the amount of money for a price RANGE per unit, shipping charges, or payment charges. The currency and other relevant details are attached to the respective gr:PriceSpecification etc.
For a gr:UnitPriceSpecification, this is the LOWER BOUND for the price for one unit or bundle (as specified in the unit of measurement of the unit price specification) of the respective gr:ProductOrService. For a gr:DeliveryChargeSpecification or a gr:PaymentChargeSpecification, it is the LOWER BOUND of the price per delivery or payment.
Using gr:hasCurrencyValue sets the upper and lower bounds to the same given value, i.e., x gr:hasCurrencyValue y implies x gr:hasMinCurrencyValue y, x gr:hasMaxCurrencyValue y.
 This property specifies the LOWER BOUND of the amount of money for a price RANGE per unit, shipping charges, or payment charges. The currency and other relevant details are attached to the respective Price Specification etc.
For a Unit Price Specification, this is the LOWER BOUND for the price for one unit or bundle (as specified in the unit of measurement of the Unit Price Specification) of the respective Product Or Service. For a Delivery Charge Specification or a Payment Charge Specification, it is the LOWER BOUND of the price per delivery or payment.
Using hasCurrencyValue sets the upper and lower bounds to the same given value, i.e., x hasCurrencyValue y implies x hasMinCurrencyValue y, x hasMaxCurrencyValue y.
