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neva clog duplex stapler sm wm

Seemingly from the mists of time comes the Neva-Clog Duplex Stapler. Designed by Max Vogel, the founder of Neva-Clog, this is the earliest desk-type stapler produced by Neva-Clog. As a matter of fact, it is one of only three desk staplers ever produced by Neva-Clog which was famed for its high-quality plier-type staplers.

While the Duplex is an uncommon stapler to find here in the U.S., it was in actuality one of the more successful staplers designed by Vogel. U.S. patent 1935280 was applied for in 1930 but not granted until 1933. However, Max Vogel also had a German patent (and likely in other countries as well) that was granted before the U.S. one. This German patent was assigned to Max Vogel’s German company.

Max Vogel started his Neva Clog enterprise in 1921 but he had been running another stationery manufacturing company in Germany by the name of M. Vogel A.G. since the late 19th century. He started his U.S. enterprise as a way to distribute his products, which in addition to the stapling line, also included no-ring notebooks, loose leaf books, clip fasteners and other items. Max licensed his patent for the Duplex to many companies in Europe. This is why if you do some searching you can find many Duplex-type staplers where the only difference to the Neva-Clog model is in the design etched on the plunger.

Kartro model 666 - Kartro is still in business today

Kartro model 666 – Kartro is still in business today

The Neva-Clog Duplex stapler weighs 10 ounces empty and measures 4.5″L x 1.75″W x 3.5″H. It uses the uncommon D1000 staples.

Although the Duplex patent was applied for in 1930 it was sold prior to that year. The earliest references I can find to this stapler are from 1928 and the latest in 1936. While licensed versions of this stapler were available in Europe after 1936 (Elastic A.G. sold this in Europe as the “Sphinx”) the Neva-Clog Duplex was likely only sold from 1928 to 1936. The pre-U.S. patent models sold in the U.S. were a bit “beefier” and had a removable screw at the rear pivot joint that allowed the stapler to be removed from its base to be used as a tacker or attached to an available extension base. However, with later models (like in the pictures above) you could simply rotate the base 180 degrees to use this as a tacker. It is my opinion that this later model was introduced sometime around 1933.  All Duplex staplers sold in the United States appear to have been manufactured in Germany.

neva clog duplex stapler v1 sm wm

First version, German-made Duplex stapler ca. 1928. Aside from the beefier look the overall measurements are the same as the later version.

neva clog duplex v1 stapler plunger sm wm

Plunger from first version model

neva clog duplex stapler plunger sm wmkartro 666 stapler plunger sm wmelastic sphinx stapler plunger sm wm

Neva-Clog started manufacturing staplers and staples here in the U.S. in 1933. It was at this time that the Nazi government took over the German plant. I imagine that Mr. Vogel’s being Jewish had a lot to do with that. It was in 1933 that Max Vogel concentrated all of his business at his plant in Bridgeport, Connecticut.

M. Vogel A.G. changed names to Elastic A.G. after the war.  Until at least 1961 U.S. patents granted to Elastic A.G. show the patent being granted to Elastic A.G. formerly M. Vogel A.G.  In 2002 Isaberg Rapid, a Swedish company, acquired Elastic A.G. and several years later Isaberg Rapid was acquired by Esselte.

Want to know more about the Duplex Stapler or Neva-Clog?  Want the most updated research available showing the third version Duplex?  Purchase Staplers, Stapling Machines, & Paper Fasteners Volume 2: Neva-Clog by American Stationer and available on Amazon.

Patent Information:


  1. Horder’s Office Supply and Furniture Catalog (1928), Chicago, IL page 287
  2. Utility Supply Company Catalog (1936), Chicago, IL page 172
  3. Hoffman, Edward (1964, September 13). Industrial Sketchbook Neva-Clog Products, Inc., Bridgeport Sunday Post, page D-8

Special Thanks:

To Stefan Wolf, an email pal from Kiel, Germany and the author of the www.nassrasur.com website.  It was Stefan who discovered what happened to Max Vogel’s company, M. Vogel AG, after the war.  Although Neva-Clog is no longer around, it’s nice to know that Max Vogel’s legacy lives on to the present.  It’s also nice to know people like Stefan who go out of their way to search out and share information with all of us.  Stefan, since I can’t buy you the beer you deserve, I’ll raise a toast to you tonight with a pint of the black stuff.

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