Antique radio, loud speaker.. - ATWATER KENT: historical documents 1906 - 1943

Description

I offer a collection of
more than
180 (!!)
patents from A. Atwater Kent or Atwater Kent Co.
, published between 1906 and 1943
in
USA  (all in english).
They are busy with
radio receiving system / apparatus, loudspeaker, condensor, amplifying system and similar topics in this field (early patents in this collection are busy with other things like sparking device, signaling horn, vehicle seat..).
All patents are complete, that means contain the full text and all drawings (see example). You will get a professional overview about the inventions of Atwater Kent which you find nowhere in the world in this good quality / completeness.
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.
Copyright of the patent collection has only the seller!
Shipping:
You can download this patent collection after payment. I will send a link for downloading a zip-File of about 97 MB with the patent collection. After downloading please unzip the file. Then you will get a data directory with the pdf - patent files.
I will send the link for downloading not later than one day after payment to your ebay email address. Then you have 10 days time to download your patent collection of historical patents.
Payment:
By Paypal or by international bank account transfer (interesting especially for buyers in the EURO region).