I offer a collection of 230 patents of the well-known company IHAGEE, of the founder Steenbergen or coworkers, which were published between 1913 and 1969 in Germany (including special type of German patents called "Gebrauchsmuster", like utility models), Switzerland, the USA, Great Britain and France (in German, English or French). They inform about various cameras, lenses, photo viewers or parts of it and some other things in the field of photographic technology.
All patents are complete, that means contain the full text and all drawings (see example). You will get a professional overview about the technical developments of this company which you find nowhere in the world in this good quality / completeness. You can learn a lot about the technical details of old camera technique.
Delivery is as a zipped file with a patent collection of pdf files (not printed, not a book). You need only the wellknown free programme Acrobat Reader or a similar one to open the files. You can also print each file.
In addition to the pdf collection, I provide also a html file that contains a chronologically ordered table of patents. In addition to the patent number, the date of issue, the owner and / or inventor, the patent title is also included (exceptions are a part of the "Gebrauchsmuster"/utility models, where only the document number is registered). Each patent entry in the table is directly linked to the respective pdf file. So it is sufficient to click to open the patent. It's that easy! The file can be opened / used with the common browsers.
The same table is also added as Excel file (also with links to each individual patent).
Of course you can open each patent file also direct without using of the Excel table!
Copyright of the patent collection has only the seller!
Shipping:
You can d o w n l o a d this patent collection after payment from an internet source. I will send the text of the link for d o w n l o a d i n g a zip-File of about 71 MB with the patent collection as message to the buyer via the ebay system. Please have a look at your messages in the "My ebay" modus or see your emails in your ebay email account, where the message to the buyer should also arrives. After d o w n l o a d i n g please unzip the file. Then you will get a data directory with the pdf - patent files. I will send the link not later than one day after payment. Then you have 10 days time to d o w n l o a d your patent collection of historical patents.