Categories Ads Burroughs Portable Subtractor 1928 Post author By Olivia Post date June 6, 2022 No Comments on Burroughs Portable Subtractor 1928 ← Bell System 1928 → Cadillac 1928 Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.