Old (movie) camera/projector... Ernst Leitz (Leica): History 1927 – 1969

Description

I offer a collection of over
340 (!!) patents
from USA and Great Britain of the wellknown company Ernst Leitz (or of the Leica - inventor Oskar Barnack), published between 1927 and 1969
. They are all in english and
busy with cameras, projectors, movie picture cameras, enlargement devices and some more or parts of it
.
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.
Also included is an Excel list with patent numbers, datas of issue and patent titles. The list is linked directly to each patent file so that each patent can be opened very easy if you click on the link. This is a very comfortable way to exploit the extensive document material.
It is not really a problem if you do not have the programme Excel from Microsoft. Look for "Excel Viewer" at google and you will find freeware version of an Excel Viewer programme. So you can open and print the Excel table without problem
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 132 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 then 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.
Transmitting by  d o w n l o a d  from internet save us a lot of time and shipping costs and is secure! If you do not want  d o w n lo a d   the historical patent collection, I could send it also on CD, but this will cost 5 US Dollars more for shipping as airmail letter and the CD. If you want it on CD please inform me BEFORE payment, so that I can send a corrected invoice with shipping costs!