Metal paper clips
Metal spring paper clips
The design has been changed several times just to make sure the clip fits well with the magnetic tray. One or more paper clips can make a loopback device for a RS interface or indeed many interfaces. Vaaler probably succeeded in having his design patented abroad, despite the previous existence of more useful paper clips, because patent authorities at that time were quite liberal and rewarded any marginal modification of existing inventions. The second approach, which is more feasible but needs some practice, is to use the semi-unfolded clip kink for lifting when the clip is inserted through the hole where the handcuffs are closed. The wearing of paper clips was soon prohibited, and people wearing them could risk severe punishment. Vaaler probably did not know that a better product was already on the market, although not yet in Norway. The most common material is steel or some other metal , but moulded plastic is also used. A paper clip could be installed in a Commodore disk-drive as a flexible head-stop. They chose to overlook the fact that Vaaler's clip was not the same as the fully developed Gem-type clip. He came across Vaaler's patent, but failed to detect that it was not the same as the then-common Gem-type clip. This clip was advertised at that time for use in fastening newspapers. His reasons for applying abroad are not known; it is possible that he wanted to secure the commercial rights internationally.
Have you ever had these problems with traditional paperclips? Why did we create it? Since then countless variations on the same theme have been patented.
Spring loaded metal clips
I've also tried many different materials to make sure that the clip has the best durability. The clip would instead stand out like a keel, perpendicular to the sheet of paper. But this monument shows a Gem-type clip, not the one patented by Vaaler. His version was never manufactured and never marketed, because the superior Gem was already available. Wright in This is seen on most CD-ROM drives as an "emergency eject" should the power fail; also on early floppy disk drives including the early Macintosh. Why did we create it?
His version was never manufactured and never marketed, because the superior Gem was already available. He was granted patents in Germany  and in the United States  for a paper clip of similar design, but less functional and practical, because it lacked the last turn of the wire.
It can also be used as a bookmarkor a hair clip and more The clip would instead stand out like a keel, perpendicular to the sheet of paper. It shows the Gem, not the one patented by Vaaler.
The most common material is steel or some other metalbut moulded plastic is also used. This pin looked more like a modern cotter pin than a modern paper clip, but it was designed to hold sheets of paper together.
Long after Vaaler's death his countrymen created a national myth based on the false assumption that the paper clip was invented by an unrecognised Norwegian genius.
This clip was originally intended primarily for attaching tickets to fabric, although the patent recognized that it could be used to attach papers together.
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