Now, almost everywhere applied electronic machines and appliances, the programme of work which is carried out by using perforated paper tapes and cards. Therefore, it is easy from already used punch cards to pick up where the holes were located in one row. Essentially, this is a ready device for drawing dashes: apply to the centers of the holes, a ruler and a pencil or pen — under the card will remain clear dotted line.
Recommend to read
DRILLS ENLARGER…
At the present time become unneeded enlargers: not only because of the high cost and scarcity of photographic materials, but also wide distribution of "phocomelic" and laboratories for...
THE BRUSH DOES NOT DRY UP
If in a plastic cover for glass jars to make the appropriate hole for the handle paint brush, "kill", as the saying goes, "two birds with one stone": and the paint in the Bank will not...
