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CLASSIQUE. 29,4 cm. GRAPHOPLEX. ELECTRIC LOG-LOG British ( anglaise). CLASSIQUE. 29 cm. GRAPHOPLEX. ELECTRIC LOG-LOG ( variante). Graphoplex Slide rules. Welcome · Calculators · Slide Rules · Aristo · Arithma · Concise · Dietzgen · Faber-Castell · Gilson · Graphoplex · Hope · Keuffel & Esser . Use the various search options to discover and browse the details of the slide rules (many with images and copies of the instructions) I have collected since.

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Graphoplex Slide rules – Graphoplex Electric Log-Log

Extended capacity trig rule, has P Pythagorean scale. Extended capacity hyperbolic log log rule, has P Pythagorean scale. Time Certina hanwind steel Switzerland. Go to the Slide Rule Parts.

Instructions were typically very short, folded brochures, often folded to fit inside the cases.

CLICK on each image to see the page in full size! Circular rules existed under the tradename Roplexwith an uncommon wheel-rotation design.

Go to the Slide Rule Books. Sphere Research Corporation Sunnyside Rd.

Leather slip case b Pocket Tecnilog This is typical of the instructions supplied with most of the more complex rules. Camera Voigtlander Vitoret R case and accessories Germany It has a burgundy plastic case, card of tables, etc, and an instruction leaflet. The surface finish is very glossy on most rules, and the scale markings appear to be underneath a thin clear surface coating or layer.

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Graphoplex Slide rules

The Graphoplex Company Archive. Unusual black, red and blue scale markings, fine secondary numbers in blue.

I have been unable to locate a current company called Graphoplex in France today, but they supposedly were involved in other plastics molding and manufacturing, so may now exist as a different company, or as part of a larger conglomerate. It has a French instruction manual. General purpose simplex trig rule. Both names are printed on the back of the rule and the latter is also printed on the gtaphoplex slip case.

Specialty electronics engineering rule for direct calculation of frequency, capacitive reactance, inductive reactance, etc. Both cursor and rule are celluloid. Camera 4 vintage cameras Germany France England.

Graphoplex 640 slide rule box papers 1960 France

Ther is also a formula chart strip form included with some rules. It has a card case. The rule itself is garphoplex of plastic, as well as the cursor which has several long and short hairlines, window with hairline on the back as well. Curser and slide rule are complete and everything is in good condition, graphoples light yellowing to the front. So far, we have located a wide variety of simplex pocket and full sized rules, and several full sized duplex rules, all in plastic construction.

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I was able to find two Koh-I-Noor sets here, but only one other original Graphoplex rule.

Graphoplex slide rule box papers France – Vintage Man Stuff

Camera Prazisa boxed camera flash light Germany. They were based in Paris, and all their rules found so far are of plastic construction, and from the materials used, would seem to be a post-WW2 manufacturer. F requently A sked Q uestions. A short form catalog often was present at the top, listing similar rules by model number. Only short form catalog additions to instructions sheets have been found so far, so the complete model range and dates of manufacture are not known at this time.

There is a fixed cursor on the rear glass. Graphoplex often mistakenly called Raphoplex because people do not realize the large stylized surrounding G is part of the name was the main slide rule manufacturer in France.

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