I understand your frustration and it is a gray area as far as it goes to deaf rights. Unfortunately, a deaf worker has to do more in situations that call for written communication. At the top if each page of paper you write on, you could expressly request that the paper be returned to you upon completion of the conversation. If the paper was used in a board meeting, the request you wrote will be noted, hopefully in your favor. Or if you are a union member, you could have a representative of it being present at the next "talk." There are more options I will not discuss here, but the point is that deaf and hearing workers are covered by the same company rules regarding information given in the workplace.