contract Product{
  address public owner;
  string public title;
  mapping (address => uint) quantity;

  event Transferred(address from, address to, uint quantity);

  // Constructor
  function Product(string _title, uint _quantity){
    owner = msg.sender;
    title = _title;
    quantity[msg.sender] = _quantity;
  }

  function getQuantity(address _user) constant returns (uint _quantity){
    return quantity[_user];
  }

  function changeQuantity(uint _quantity) returns (bool success){
    quantity[msg.sender] = _quantity;
    return true;
  }

  function transfer(address _to, uint _quantity) returns (bool success){
    if (quantity[msg.sender] < _quantity){
      return false;
    }

    owner = _to;
    quantity[msg.sender] -= _quantity;
    quantity[_to] += _quantity;
    Transferred(msg.sender, _to, _quantity);
    return true;
  }
}

Filter {
  requestManager:
   RequestManager {
     provider: HttpProvider { host: 'http://localhost:8545', timeout: 0 },
     polls: {},
     timeout: null },
  options:
   { topics: [ '0x6f8b0853f4c56c6a9faec2151763bdc803a695c1ce09b45d3036186c5ae14c47' ],
     from: undefined,
     to: undefined,
     address: '0x570a704dded5379eb21b064cc7750741348e8860',
     fromBlock: '0x0',
     toBlock: 'latest' },
  implementation:
   { newFilter: { [Function: send] request: [Function: bound ], call: [Function: newFilterCall] },
     uninstallFilter: { [Function: send] request: [Function: bound ], call: 'eth_uninstallFilter' },
     getLogs: { [Function: send] request: [Function: bound ], call: 'eth_getFilterLogs' },
     poll: { [Function: send] request: [Function: bound ], call: 'eth_getFilterChanges' } },
  filterId: '0x0b',
  callbacks: [],
  getLogsCallbacks: [],
  pollFilters: [],
  formatter: [Function: outputLogFormatter] }

let transferEvent = product.Transferred({}, {fromBlock: 0, toBlock: 'latest'})
transferEvent.get((error, logs) => {
  // we have the logs, now print them
  logs.forEach(log => console.log(log.args))
})

{ from: '0xc7d748654199d3594239a244d806e51331ca14b5',
  to: '0x3c11b23b4d5adb2d534d262cf83cee773c9b1c0a',
  quantity: { [String: '1'] s: 1, e: 0, c: [ 1 ] } }
{ from: '0xc7d748654199d3594239a244d806e51331ca14b5',
  to: '0x3c11b23b4d5adb2d534d262cf83cee773c9b1c0a',
  quantity: { [String: '3'] s: 1, e: 0, c: [ 3 ] } }

let events = product.allEvents({fromBlock: 0, toBlock: 'latest'})