1典型案例孙某原来是甲煤炭经销公司(以下简称“甲公司”)的销售代表,为了便于其开展业务,公司给了孙某数份盖有公司合同专用章的空白合同书。后因孙某违规收取客户回扣被公司开除。但是办理离职手续时甲公司忘记将孙某手中剩余的空白合同书收回。孙某以此合同书与乙公司签订了 A typical case Sun originally turned out to be a sales representative of a coal distribution company (hereinafter referred to as “A company”), in order to facilitate its business, the company gave Sun a number of blank contracts with special seals of the contract contract. Later because Sunmou illegal customer rebates charged by the company dismissed. However, a company left for the formalities of leaving the office forgot to return the remaining blank contract Sun hands. Sohn signed a contract with Company B.