There is some overlap between stock/non-stock and for profit/not-for-profit in that not-for-profit corporations are always non-stock as well. A for profit corporation is almost always a stock corporation, but some for profit corporations may choose to be non-stock.n British English and in the Commonwealth countries, the term company is more widely used to describe the same sort of entity while the word corporation encompasses all incorporated entities.
Richard G. Drew invented double-sided tape while working for the 3M company.
In 1853, Julius Wilhelm Gintl in Vienna, Austria discovered a way to send two telegraph messages in opposite directions down the same wire. This technology was not commercially successful until 1871, when it was improved by the duplex system of inventor J. B. Stearns.ithin a year or two, Western Union and other telegraph companies were using diplex telegraphs on their busiest lines in major cities. In 1874, Thomas Edison invented the first quadruplex telegraph, which was capable of sending two messages simultaneously in each direction.