Author Topic: Edisona  (Read 1066 times)

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Offline vadim_365

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Edisona
« on: October 01, 2020, 01:27:43 PM »
Good afternoon. I have such tools in my collection. I did not find any information about them. Help? I am looking for the number 1 of the same manufacturer.

Offline vadim_365

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Re: Edisona
« Reply #1 on: October 01, 2020, 01:30:09 PM »
more photos

Offline Lewill2

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Re: Edisona
« Reply #2 on: October 01, 2020, 02:04:50 PM »
These are similar to our Bullard Automatic Wrench Company wrenches patented October 27, 1903 under US patent 742,389. You can look at DATAMP.org and enter the patent number.

Offline vadim_365

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Re: Edisona
« Reply #3 on: October 01, 2020, 02:19:46 PM »
It is similar in shape to a bullard. But this is German, there is the Kissing und Möllmann brand. No more information. Probably produced between 1934-1945

Offline vadim_365

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Re: Edisona
« Reply #4 on: October 01, 2020, 02:23:45 PM »
In Germany, a similar key was produced under the name Platina.

Offline mvwcnews

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Re: Edisona
« Reply #5 on: October 10, 2020, 07:35:03 PM »
The G.M. in D.R.G.M. is "GebrauchsMuster" --  not as rigorous as a patent & only applied to articles of utility.  I have come across a few GebrauchsMuster registrations corresponding to U.S. wrench patents.  As noted above, the design is pretty much a copy of the Bullard patent with some slight tweak of details.  Thanks for the name of the manufacturing company -- I might get lucky with a search using  Google books & turn up an advertisement (I had that kind of luck with a MAUSER quick-adjust ad from the early 1920s.)