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
A BOAT FOR EVERY TASTE
In which only the terms will not be during the journey of the lovers of water tourism! And not always the boat suitable for sailing in a pond, suitable for another. We have...
Honey extractor
Breeding bees, this profitable branch of agriculture, recently became engaged not only the owners of plots or sudebnyh mini uchastkov, notary one can hardly place unless some hives,...
